Finding the Fourth Proportional to 3,124.72, 4,686.27 and 932.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,124.72 : 4,686.27 = 932.86 : x
2. Step 2: Convert to fraction form
   3,124.72/4,686.27 = 932.86/x
3. Step 3: Cross multiply
   3,124.72x = 4,686.27 × 932.86
4. Step 4: Simplify right side
   3,124.72x = 4,371,633.83
5. Step 5: Solve for x
   x = 4,371,633.83/3,124.72
6. Step 6: Final answer
   x = 1,399.05