Finding the Fourth Proportional to 2,399.75, 3,311.17 and 1,404.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.75 : 3,311.17 = 1,404.83 : x
2. Step 2: Convert to fraction form
   2,399.75/3,311.17 = 1,404.83/x
3. Step 3: Cross multiply
   2,399.75x = 3,311.17 × 1,404.83
4. Step 4: Simplify right side
   2,399.75x = 4,651,630.95
5. Step 5: Solve for x
   x = 4,651,630.95/2,399.75
6. Step 6: Final answer
   x = 1,938.38