Finding the Fourth Proportional to 6,885.38, 10,327.89 and 1,691.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,885.38 : 10,327.89 = 1,691.30 : x
2. Step 2: Convert to fraction form
   6,885.38/10,327.89 = 1,691.30/x
3. Step 3: Cross multiply
   6,885.38x = 10,327.89 × 1,691.30
4. Step 4: Simplify right side
   6,885.38x = 17,467,560.36
5. Step 5: Solve for x
   x = 17,467,560.36/6,885.38
6. Step 6: Final answer
   x = 2,536.91