Finding the Fourth Proportional to 1,025.88, 1,415.72 and 560.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025.88 : 1,415.72 = 560.16 : x
2. Step 2: Convert to fraction form
   1,025.88/1,415.72 = 560.16/x
3. Step 3: Cross multiply
   1,025.88x = 1,415.72 × 560.16
4. Step 4: Simplify right side
   1,025.88x = 793,029.72
5. Step 5: Solve for x
   x = 793,029.72/1,025.88
6. Step 6: Final answer
   x = 773.02