Riddle number 3276

In these 4 sentences, 2 tell the truth and 2 are lying.
The treasure chest tells the truth.
Where is the treasure?

  Chest 1: The chest 2 is empty.
  Chest 2: The treasure is not in chest 4.
  Chest 3: The chest 1 tells the truth.
  Chest 4: The treasure is not in chest 3.