Finding the Fourth Proportional to 3,906.27, 5,392.31 and 3,800.97

Step by Step Solution

1. Step 1: Write the proportion equation
   3,906.27 : 5,392.31 = 3,800.97 : x
2. Step 2: Convert to fraction form
   3,906.27/5,392.31 = 3,800.97/x
3. Step 3: Cross multiply
   3,906.27x = 5,392.31 × 3,800.97
4. Step 4: Simplify right side
   3,906.27x = 20,495,989.54
5. Step 5: Solve for x
   x = 20,495,989.54/3,906.27
6. Step 6: Final answer
   x = 5,246.95