Finding the Fourth Proportional to 1,498.43, 2,247.59 and 458.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.43 : 2,247.59 = 458.39 : x
2. Step 2: Convert to fraction form
   1,498.43/2,247.59 = 458.39/x
3. Step 3: Cross multiply
   1,498.43x = 2,247.59 × 458.39
4. Step 4: Simplify right side
   1,498.43x = 1,030,259.25
5. Step 5: Solve for x
   x = 1,030,259.25/1,498.43
6. Step 6: Final answer
   x = 687.56