Finding the Fourth Proportional to 3,123.80, 4,685.71 and 932.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.80 : 4,685.71 = 932.54 : x
2. Step 2: Convert to fraction form
   3,123.80/4,685.71 = 932.54/x
3. Step 3: Cross multiply
   3,123.80x = 4,685.71 × 932.54
4. Step 4: Simplify right side
   3,123.80x = 4,369,624.88
5. Step 5: Solve for x
   x = 4,369,624.88/3,123.80
6. Step 6: Final answer
   x = 1,398.82