Finding the Fourth Proportional to 2,568.54, 3,853.94 and 2,457.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.54 : 3,853.94 = 2,457.82 : x
2. Step 2: Convert to fraction form
   2,568.54/3,853.94 = 2,457.82/x
3. Step 3: Cross multiply
   2,568.54x = 3,853.94 × 2,457.82
4. Step 4: Simplify right side
   2,568.54x = 9,472,290.81
5. Step 5: Solve for x
   x = 9,472,290.81/2,568.54
6. Step 6: Final answer
   x = 3,687.81