Finding the Fourth Proportional to 1,499.95, 2,249.67 and 404.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.95 : 2,249.67 = 404.23 : x
2. Step 2: Convert to fraction form
   1,499.95/2,249.67 = 404.23/x
3. Step 3: Cross multiply
   1,499.95x = 2,249.67 × 404.23
4. Step 4: Simplify right side
   1,499.95x = 909,384.10
5. Step 5: Solve for x
   x = 909,384.10/1,499.95
6. Step 6: Final answer
   x = 606.28