Finding the Fourth Proportional to 1,042.59, 1,562.86 and 384.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.59 : 1,562.86 = 384.31 : x
2. Step 2: Convert to fraction form
   1,042.59/1,562.86 = 384.31/x
3. Step 3: Cross multiply
   1,042.59x = 1,562.86 × 384.31
4. Step 4: Simplify right side
   1,042.59x = 600,622.73
5. Step 5: Solve for x
   x = 600,622.73/1,042.59
6. Step 6: Final answer
   x = 576.09