Riverbed Appliance uses a perpetual inventory system. For its flat-screen television sets, the January 1 inventory was 4 sets at $565 each. On January 10, Riverbed purchased 7 units at $755 each. The company sold 2 units on January 8 and 4 units on January 15. (a) Compute the ending inventory under FIFO. FIFO The ending inventory $