Steps to set up Amazon Tablets with Google Play.
Enable “Apps from Unknown Sources” found under Settings > Security
Add these four APK files using the Silk Browser
They need to be done in order
To install each one you will need to press the POWER BUTTON to lock the device when on the APK install screen and then unlock it again to allow the INSTALL BUTTON to be pressed.
After all of these are installed POWER OFF and RESTART the tablet.
Google Play Account