Finding the Fourth Proportional to 2,569.41, 3,854.57 and 1,399.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,569.41 : 3,854.57 = 1,399.37 : x
2. Step 2: Convert to fraction form
   2,569.41/3,854.57 = 1,399.37/x
3. Step 3: Cross multiply
   2,569.41x = 3,854.57 × 1,399.37
4. Step 4: Simplify right side
   2,569.41x = 5,393,943.35
5. Step 5: Solve for x
   x = 5,393,943.35/2,569.41
6. Step 6: Final answer
   x = 2,099.29