Finding the Fourth Proportional to 6,459.34, 9,689.10 and 2,076.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,459.34 : 9,689.10 = 2,076.88 : x
2. Step 2: Convert to fraction form
   6,459.34/9,689.10 = 2,076.88/x
3. Step 3: Cross multiply
   6,459.34x = 9,689.10 × 2,076.88
4. Step 4: Simplify right side
   6,459.34x = 20,123,098.01
5. Step 5: Solve for x
   x = 20,123,098.01/6,459.34
6. Step 6: Final answer
   x = 3,115.35