Finding the Fourth Proportional to 1,040.52, 1,559.50 and 655.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.52 : 1,559.50 = 655.88 : x
2. Step 2: Convert to fraction form
   1,040.52/1,559.50 = 655.88/x
3. Step 3: Cross multiply
   1,040.52x = 1,559.50 × 655.88
4. Step 4: Simplify right side
   1,040.52x = 1,022,844.86
5. Step 5: Solve for x
   x = 1,022,844.86/1,040.52
6. Step 6: Final answer
   x = 983.01