Finding the Fourth Proportional to 2,685.52, 3,679.24 and 2,581.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.52 : 3,679.24 = 2,581.84 : x
2. Step 2: Convert to fraction form
   2,685.52/3,679.24 = 2,581.84/x
3. Step 3: Cross multiply
   2,685.52x = 3,679.24 × 2,581.84
4. Step 4: Simplify right side
   2,685.52x = 9,499,209.00
5. Step 5: Solve for x
   x = 9,499,209.00/2,685.52
6. Step 6: Final answer
   x = 3,537.20