Finding the Fourth Proportional to 2,399.51, 3,311.14 and 1,404.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.51 : 3,311.14 = 1,404.93 : x
2. Step 2: Convert to fraction form
   2,399.51/3,311.14 = 1,404.93/x
3. Step 3: Cross multiply
   2,399.51x = 3,311.14 × 1,404.93
4. Step 4: Simplify right side
   2,399.51x = 4,651,919.92
5. Step 5: Solve for x
   x = 4,651,919.92/2,399.51
6. Step 6: Final answer
   x = 1,938.70