3. Given the cash flow profiles shown below, determine the value of X so that the two cash flow profiles are equivalent at a 10% interest rate. Use gradient series factor wherever appropriate. End of Year Cash Flow of gA) Cash Flow of (B) 1 $12,000 -$10,000 2 1,000 7,000 3 3,000 6,000 + 0.5x 4 5,000 5,000 + 1.0x 5 7,000 4,000 + 1.5x 6 9,000