Finding the Fourth Proportional to 3,388.52, 5,068.92 and 2,560.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,388.52 : 5,068.92 = 2,560.64 : x
2. Step 2: Convert to fraction form
   3,388.52/5,068.92 = 2,560.64/x
3. Step 3: Cross multiply
   3,388.52x = 5,068.92 × 2,560.64
4. Step 4: Simplify right side
   3,388.52x = 12,979,679.31
5. Step 5: Solve for x
   x = 12,979,679.31/3,388.52
6. Step 6: Final answer
   x = 3,830.49