Finding the Fourth Proportional to 3,123.76, 4,686.43 and 932.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.76 : 4,686.43 = 932.48 : x
2. Step 2: Convert to fraction form
   3,123.76/4,686.43 = 932.48/x
3. Step 3: Cross multiply
   3,123.76x = 4,686.43 × 932.48
4. Step 4: Simplify right side
   3,123.76x = 4,369,997.58
5. Step 5: Solve for x
   x = 4,369,997.58/3,123.76
6. Step 6: Final answer
   x = 1,398.95