Finding the Fourth Proportional to 3,171.15, 4,757.94 and 2,196.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,171.15 : 4,757.94 = 2,196.72 : x
2. Step 2: Convert to fraction form
   3,171.15/4,757.94 = 2,196.72/x
3. Step 3: Cross multiply
   3,171.15x = 4,757.94 × 2,196.72
4. Step 4: Simplify right side
   3,171.15x = 10,451,861.96
5. Step 5: Solve for x
   x = 10,451,861.96/3,171.15
6. Step 6: Final answer
   x = 3,295.92