Finding the Fourth Proportional to 1,124.71, 1,552.17 and 627.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,124.71 : 1,552.17 = 627.42 : x
2. Step 2: Convert to fraction form
   1,124.71/1,552.17 = 627.42/x
3. Step 3: Cross multiply
   1,124.71x = 1,552.17 × 627.42
4. Step 4: Simplify right side
   1,124.71x = 973,870.12
5. Step 5: Solve for x
   x = 973,870.12/1,124.71
6. Step 6: Final answer
   x = 865.89