Finding the Fourth Proportional to 1,046.22, 1,569.60 and 498.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.22 : 1,569.60 = 498.12 : x
2. Step 2: Convert to fraction form
   1,046.22/1,569.60 = 498.12/x
3. Step 3: Cross multiply
   1,046.22x = 1,569.60 × 498.12
4. Step 4: Simplify right side
   1,046.22x = 781,849.15
5. Step 5: Solve for x
   x = 781,849.15/1,046.22
6. Step 6: Final answer
   x = 747.31