Finding the Fourth Proportional to 6,488.55, 9,734.22 and 2,105.91

Step by Step Solution

1. Step 1: Write the proportion equation
   6,488.55 : 9,734.22 = 2,105.91 : x
2. Step 2: Convert to fraction form
   6,488.55/9,734.22 = 2,105.91/x
3. Step 3: Cross multiply
   6,488.55x = 9,734.22 × 2,105.91
4. Step 4: Simplify right side
   6,488.55x = 20,499,391.24
5. Step 5: Solve for x
   x = 20,499,391.24/6,488.55
6. Step 6: Final answer
   x = 3,159.32