Finding the Fourth Proportional to 1,124.43, 1,685.16 and 630.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,124.43 : 1,685.16 = 630.83 : x
2. Step 2: Convert to fraction form
   1,124.43/1,685.16 = 630.83/x
3. Step 3: Cross multiply
   1,124.43x = 1,685.16 × 630.83
4. Step 4: Simplify right side
   1,124.43x = 1,063,049.28
5. Step 5: Solve for x
   x = 1,063,049.28/1,124.43
6. Step 6: Final answer
   x = 945.41