Finding the Fourth Proportional to 3,540.30, 5,313.69 and 2,568.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,540.30 : 5,313.69 = 2,568.30 : x
2. Step 2: Convert to fraction form
   3,540.30/5,313.69 = 2,568.30/x
3. Step 3: Cross multiply
   3,540.30x = 5,313.69 × 2,568.30
4. Step 4: Simplify right side
   3,540.30x = 13,647,150.03
5. Step 5: Solve for x
   x = 13,647,150.03/3,540.30
6. Step 6: Final answer
   x = 3,854.80