Finding the Fourth Proportional to 2,568.72, 3,544.08 and 1,574.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.72 : 3,544.08 = 1,574.16 : x
2. Step 2: Convert to fraction form
   2,568.72/3,544.08 = 1,574.16/x
3. Step 3: Cross multiply
   2,568.72x = 3,544.08 × 1,574.16
4. Step 4: Simplify right side
   2,568.72x = 5,578,948.97
5. Step 5: Solve for x
   x = 5,578,948.97/2,568.72
6. Step 6: Final answer
   x = 2,171.88