Finding the Fourth Proportional to 1,042.32, 1,562.37 and 494.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.32 : 1,562.37 = 494.10 : x
2. Step 2: Convert to fraction form
   1,042.32/1,562.37 = 494.10/x
3. Step 3: Cross multiply
   1,042.32x = 1,562.37 × 494.10
4. Step 4: Simplify right side
   1,042.32x = 771,967.02
5. Step 5: Solve for x
   x = 771,967.02/1,042.32
6. Step 6: Final answer
   x = 740.62