Finding the Fourth Proportional to 6,443.57, 9,658.61 and 2,697.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,443.57 : 9,658.61 = 2,697.50 : x
2. Step 2: Convert to fraction form
   6,443.57/9,658.61 = 2,697.50/x
3. Step 3: Cross multiply
   6,443.57x = 9,658.61 × 2,697.50
4. Step 4: Simplify right side
   6,443.57x = 26,054,095.15
5. Step 5: Solve for x
   x = 26,054,095.15/6,443.57
6. Step 6: Final answer
   x = 4,043.42