Finding the Fourth Proportional to 2,687.12, 3,708.15 and 1,568.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687.12 : 3,708.15 = 1,568.10 : x
2. Step 2: Convert to fraction form
   2,687.12/3,708.15 = 1,568.10/x
3. Step 3: Cross multiply
   2,687.12x = 3,708.15 × 1,568.10
4. Step 4: Simplify right side
   2,687.12x = 5,814,750.02
5. Step 5: Solve for x
   x = 5,814,750.02/2,687.12
6. Step 6: Final answer
   x = 2,163.94