Finding the Fourth Proportional to 2,025.12, 3,037.52 and 915.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,025.12 : 3,037.52 = 915.60 : x
2. Step 2: Convert to fraction form
   2,025.12/3,037.52 = 915.60/x
3. Step 3: Cross multiply
   2,025.12x = 3,037.52 × 915.60
4. Step 4: Simplify right side
   2,025.12x = 2,781,153.31
5. Step 5: Solve for x
   x = 2,781,153.31/2,025.12
6. Step 6: Final answer
   x = 1,373.33