Finding the Fourth Proportional to 1,092.47, 1,507.61 and 626.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,092.47 : 1,507.61 = 626.72 : x
2. Step 2: Convert to fraction form
   1,092.47/1,507.61 = 626.72/x
3. Step 3: Cross multiply
   1,092.47x = 1,507.61 × 626.72
4. Step 4: Simplify right side
   1,092.47x = 944,854.68
5. Step 5: Solve for x
   x = 944,854.68/1,092.47
6. Step 6: Final answer
   x = 864.88