Finding the Fourth Proportional to 3,800.39, 5,695.92 and 2,158.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,800.39 : 5,695.92 = 2,158.31 : x
2. Step 2: Convert to fraction form
   3,800.39/5,695.92 = 2,158.31/x
3. Step 3: Cross multiply
   3,800.39x = 5,695.92 × 2,158.31
4. Step 4: Simplify right side
   3,800.39x = 12,293,575.34
5. Step 5: Solve for x
   x = 12,293,575.34/3,800.39
6. Step 6: Final answer
   x = 3,234.82