Finding the Fourth Proportional to 2,688.27, 3,710.99 and 1,568.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.27 : 3,710.99 = 1,568.78 : x
2. Step 2: Convert to fraction form
   2,688.27/3,710.99 = 1,568.78/x
3. Step 3: Cross multiply
   2,688.27x = 3,710.99 × 1,568.78
4. Step 4: Simplify right side
   2,688.27x = 5,821,719.05
5. Step 5: Solve for x
   x = 5,821,719.05/2,688.27
6. Step 6: Final answer
   x = 2,165.60