Finding the Fourth Proportional to 1,574.72, 2,361.92 and 404.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.72 : 2,361.92 = 404.69 : x
2. Step 2: Convert to fraction form
   1,574.72/2,361.92 = 404.69/x
3. Step 3: Cross multiply
   1,574.72x = 2,361.92 × 404.69
4. Step 4: Simplify right side
   1,574.72x = 955,831.57
5. Step 5: Solve for x
   x = 955,831.57/1,574.72
6. Step 6: Final answer
   x = 606.99