Finding the Fourth Proportional to 1,045.98, 1,568.99 and 498.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.98 : 1,568.99 = 498.22 : x
2. Step 2: Convert to fraction form
   1,045.98/1,568.99 = 498.22/x
3. Step 3: Cross multiply
   1,045.98x = 1,568.99 × 498.22
4. Step 4: Simplify right side
   1,045.98x = 781,699.52
5. Step 5: Solve for x
   x = 781,699.52/1,045.98
6. Step 6: Final answer
   x = 747.34