For any smart phone, if the tracking feature is available it must be turned on. Android, has this feature and in order for it to work, the Location and Google Search must be turn on.
This option is available under Location Services.
Once the feature has been turned on, you can track your Android device from your Google Account or through the Device Manager app.
Sign in to your google account
You will now get a description on where your device was last located.
You can also Lock and Erase your phone or select Ring which will set off an alarm on your device on full volume for 5 minutes
To do this on another device instead of on your desktop, download the Android Device Manager on the device you wish to use to find your lost phone and sign in through your Google account.
Hopefully this helps you to not only prevent losing your Android and all your data on your device forever, but also to help track down your lost or stolen phone.