Finding the Fourth Proportional to 2,568.05, 3,543.92 and 1,505.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.05 : 3,543.92 = 1,505.57 : x
2. Step 2: Convert to fraction form
   2,568.05/3,543.92 = 1,505.57/x
3. Step 3: Cross multiply
   2,568.05x = 3,543.92 × 1,505.57
4. Step 4: Simplify right side
   2,568.05x = 5,335,632.26
5. Step 5: Solve for x
   x = 5,335,632.26/2,568.05
6. Step 6: Final answer
   x = 2,077.70