Finding the Fourth Proportional to 3,910.71, 5,397.29 and 2,231.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.71 : 5,397.29 = 2,231.73 : x
2. Step 2: Convert to fraction form
   3,910.71/5,397.29 = 2,231.73/x
3. Step 3: Cross multiply
   3,910.71x = 5,397.29 × 2,231.73
4. Step 4: Simplify right side
   3,910.71x = 12,045,294.01
5. Step 5: Solve for x
   x = 12,045,294.01/3,910.71
6. Step 6: Final answer
   x = 3,080.08