Finding the Fourth Proportional to 2,399.29, 3,310.47 and 1,404.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.29 : 3,310.47 = 1,404.22 : x
2. Step 2: Convert to fraction form
   2,399.29/3,310.47 = 1,404.22/x
3. Step 3: Cross multiply
   2,399.29x = 3,310.47 × 1,404.22
4. Step 4: Simplify right side
   2,399.29x = 4,648,628.18
5. Step 5: Solve for x
   x = 4,648,628.18/2,399.29
6. Step 6: Final answer
   x = 1,937.50