Finding the Fourth Proportional to 3,123.59, 4,685.37 and 932.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.59 : 4,685.37 = 932.31 : x
2. Step 2: Convert to fraction form
   3,123.59/4,685.37 = 932.31/x
3. Step 3: Cross multiply
   3,123.59x = 4,685.37 × 932.31
4. Step 4: Simplify right side
   3,123.59x = 4,368,213.81
5. Step 5: Solve for x
   x = 4,368,213.81/3,123.59
6. Step 6: Final answer
   x = 1,398.46