Finding the Fourth Proportional to 1,042.29, 1,562.34 and 494.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.29 : 1,562.34 = 494.07 : x
2. Step 2: Convert to fraction form
   1,042.29/1,562.34 = 494.07/x
3. Step 3: Cross multiply
   1,042.29x = 1,562.34 × 494.07
4. Step 4: Simplify right side
   1,042.29x = 771,905.32
5. Step 5: Solve for x
   x = 771,905.32/1,042.29
6. Step 6: Final answer
   x = 740.59