Finding the Fourth Proportional to 2,566.56, 3,538.17 and 1,725.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,566.56 : 3,538.17 = 1,725.78 : x
2. Step 2: Convert to fraction form
   2,566.56/3,538.17 = 1,725.78/x
3. Step 3: Cross multiply
   2,566.56x = 3,538.17 × 1,725.78
4. Step 4: Simplify right side
   2,566.56x = 6,106,103.02
5. Step 5: Solve for x
   x = 6,106,103.02/2,566.56
6. Step 6: Final answer
   x = 2,379.10