Finding the Fourth Proportional to 2,658.89, 3,642.71 and 2,559.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.89 : 3,642.71 = 2,559.15 : x
2. Step 2: Convert to fraction form
   2,658.89/3,642.71 = 2,559.15/x
3. Step 3: Cross multiply
   2,658.89x = 3,642.71 × 2,559.15
4. Step 4: Simplify right side
   2,658.89x = 9,322,228.50
5. Step 5: Solve for x
   x = 9,322,228.50/2,658.89
6. Step 6: Final answer
   x = 3,506.06