On January' 1, 2013, Carat Company agreed to sell a diamond to a customer at a special

Question:

On January' 1, 2013, Carat Company agreed to sell a diamond to a customer at a special price of $5,000. Payment terms were $ 1,000 on January 1, 2013 and $1,000 each January' 1 from 2014 to 2017. Carat normally' charges 6% interest to its customers, but did not charge interest on this special sale.
Required:
How much revenue, and how many in accounts receivable, should Carat recognize on January 1, 2013?