Finding the Fourth Proportional to 1,498.53, 2,248.17 and 458.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.53 : 2,248.17 = 458.55 : x
2. Step 2: Convert to fraction form
   1,498.53/2,248.17 = 458.55/x
3. Step 3: Cross multiply
   1,498.53x = 2,248.17 × 458.55
4. Step 4: Simplify right side
   1,498.53x = 1,030,898.35
5. Step 5: Solve for x
   x = 1,030,898.35/1,498.53
6. Step 6: Final answer
   x = 687.94