Finding the Fourth Proportional to 1,499.62, 2,249.41 and 403.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.62 : 2,249.41 = 403.89 : x
2. Step 2: Convert to fraction form
   1,499.62/2,249.41 = 403.89/x
3. Step 3: Cross multiply
   1,499.62x = 2,249.41 × 403.89
4. Step 4: Simplify right side
   1,499.62x = 908,514.20
5. Step 5: Solve for x
   x = 908,514.20/1,499.62
6. Step 6: Final answer
   x = 605.83