Finding the Fourth Proportional to 3,892.62, 5,371.20 and 2,321.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892.62 : 5,371.20 = 2,321.22 : x
2. Step 2: Convert to fraction form
   3,892.62/5,371.20 = 2,321.22/x
3. Step 3: Cross multiply
   3,892.62x = 5,371.20 × 2,321.22
4. Step 4: Simplify right side
   3,892.62x = 12,467,736.86
5. Step 5: Solve for x
   x = 12,467,736.86/3,892.62
6. Step 6: Final answer
   x = 3,202.92