Chord Progression - Piano Ear Training App

Tutorial on the Chord Progression exercise within Piano Ear Training App. Given some random chords, can you determine what the progression of chords are?

Piano Ear Training App (Free / Pro)
Android: https://play.google.com/store/apps/details?id=com.veitch.themelodymaster.phl
iOS: https://itunes.apple.com/us/app/piano-ear-training/id570615299
Learn To Master Apps: http://www.learntomaster.com/learntomaster_apps.html