Finding the Fourth Proportional to 2,399.06, 3,310.54 and 1,404.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.06 : 3,310.54 = 1,404.28 : x
2. Step 2: Convert to fraction form
   2,399.06/3,310.54 = 1,404.28/x
3. Step 3: Cross multiply
   2,399.06x = 3,310.54 × 1,404.28
4. Step 4: Simplify right side
   2,399.06x = 4,648,925.11
5. Step 5: Solve for x
   x = 4,648,925.11/2,399.06
6. Step 6: Final answer
   x = 1,937.81