Finding the Fourth Proportional to 3,526.56, 5,310.86 and 2,559.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,526.56 : 5,310.86 = 2,559.42 : x
2. Step 2: Convert to fraction form
   3,526.56/5,310.86 = 2,559.42/x
3. Step 3: Cross multiply
   3,526.56x = 5,310.86 × 2,559.42
4. Step 4: Simplify right side
   3,526.56x = 13,592,708.50
5. Step 5: Solve for x
   x = 13,592,708.50/3,526.56
6. Step 6: Final answer
   x = 3,854.38