Finding the Fourth Proportional to 1,499.39, 2,249.10 and 459.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.39 : 2,249.10 = 459.55 : x
2. Step 2: Convert to fraction form
   1,499.39/2,249.10 = 459.55/x
3. Step 3: Cross multiply
   1,499.39x = 2,249.10 × 459.55
4. Step 4: Simplify right side
   1,499.39x = 1,033,573.91
5. Step 5: Solve for x
   x = 1,033,573.91/1,499.39
6. Step 6: Final answer
   x = 689.33