Finding the Fourth Proportional to 1,499.83, 2,249.58 and 404.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.83 : 2,249.58 = 404.30 : x
2. Step 2: Convert to fraction form
   1,499.83/2,249.58 = 404.30/x
3. Step 3: Cross multiply
   1,499.83x = 2,249.58 × 404.30
4. Step 4: Simplify right side
   1,499.83x = 909,510.82
5. Step 5: Solve for x
   x = 909,510.82/1,499.83
6. Step 6: Final answer
   x = 606.41