Finding the Fourth Proportional to 2,257.52, 3,385.72 and 1,531.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257.52 : 3,385.72 = 1,531.60 : x
2. Step 2: Convert to fraction form
   2,257.52/3,385.72 = 1,531.60/x
3. Step 3: Cross multiply
   2,257.52x = 3,385.72 × 1,531.60
4. Step 4: Simplify right side
   2,257.52x = 5,185,568.75
5. Step 5: Solve for x
   x = 5,185,568.75/2,257.52
6. Step 6: Final answer
   x = 2,297.02