dropbox keeps track of the ip adress that your computere uses to sync with dropbox and that ip adress corresponds with a physical adress.
I must warn you that most residential adresses are dynamic so that residence gets the IP adress refreshed betweeen a few hours and 1 day (so I was told by Time Warner Cable). If you are lucky they'll sign in to a business IP and those are usually static.
1. dropbox.com
2. log-in
3 click on your account name (top right corner)
4. select setting from the drop down folder
5. click on the security tab
6. look at the list of my devices and put your mouse and do not click over the "most recent activity" listings and it will pop up a window with the IP adress
7. Don't forget to make a change ( add a folder, delite a file anything) to your dropbox folder, as that is the only time It will sync with the website and register an IP adress. Make a change every time you want to track it.
8. As soon as the computer is turned on and gets an internet connection it will log into dropbox and if it sees any changes then it will register an IP adress
9. Next put that IP adress onto google or a IP adress look up such as http://ip-address-lookup-v4.com
10. This will give you latitude and longitude info as well as a map, you can copy that latitude and longitude onto google maps.
11. Remember that the info may be incorrect if it is a dynamic IP address so next you have to call the local internet companies and give them that IP adress and see if they service that, from there they can tell you if it is a Static IP. If it is then you to the police department.