Finding the Fourth Proportional to 2,568.08, 3,543.54 and 1,505.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.08 : 3,543.54 = 1,505.90 : x
2. Step 2: Convert to fraction form
   2,568.08/3,543.54 = 1,505.90/x
3. Step 3: Cross multiply
   2,568.08x = 3,543.54 × 1,505.90
4. Step 4: Simplify right side
   2,568.08x = 5,336,216.89
5. Step 5: Solve for x
   x = 5,336,216.89/2,568.08
6. Step 6: Final answer
   x = 2,077.90