Finding the Fourth Proportional to 3,123.38, 4,685.39 and 1,042.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.38 : 4,685.39 = 1,042.83 : x
2. Step 2: Convert to fraction form
   3,123.38/4,685.39 = 1,042.83/x
3. Step 3: Cross multiply
   3,123.38x = 4,685.39 × 1,042.83
4. Step 4: Simplify right side
   3,123.38x = 4,886,060.04
5. Step 5: Solve for x
   x = 4,886,060.04/3,123.38
6. Step 6: Final answer
   x = 1,564.35