Finding the Fourth Proportional to 1,117.59, 1,542.45 and 675.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117.59 : 1,542.45 = 675.55 : x
2. Step 2: Convert to fraction form
   1,117.59/1,542.45 = 675.55/x
3. Step 3: Cross multiply
   1,117.59x = 1,542.45 × 675.55
4. Step 4: Simplify right side
   1,117.59x = 1,042,002.10
5. Step 5: Solve for x
   x = 1,042,002.10/1,117.59
6. Step 6: Final answer
   x = 932.37