Finding the Fourth Proportional to 1,083.31, 1,622.67 and 498.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.31 : 1,622.67 = 498.79 : x
2. Step 2: Convert to fraction form
   1,083.31/1,622.67 = 498.79/x
3. Step 3: Cross multiply
   1,083.31x = 1,622.67 × 498.79
4. Step 4: Simplify right side
   1,083.31x = 809,371.73
5. Step 5: Solve for x
   x = 809,371.73/1,083.31
6. Step 6: Final answer
   x = 747.13