Finding the Fourth Proportional to 2,863.72, 3,942.42 and 2,568.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,863.72 : 3,942.42 = 2,568.48 : x
2. Step 2: Convert to fraction form
   2,863.72/3,942.42 = 2,568.48/x
3. Step 3: Cross multiply
   2,863.72x = 3,942.42 × 2,568.48
4. Step 4: Simplify right side
   2,863.72x = 10,126,016.95
5. Step 5: Solve for x
   x = 10,126,016.95/2,863.72
6. Step 6: Final answer
   x = 3,535.96