Finding the Fourth Proportional to 3,942.28, 5,441.34 and 2,371.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,942.28 : 5,441.34 = 2,371.30 : x
2. Step 2: Convert to fraction form
   3,942.28/5,441.34 = 2,371.30/x
3. Step 3: Cross multiply
   3,942.28x = 5,441.34 × 2,371.30
4. Step 4: Simplify right side
   3,942.28x = 12,903,049.54
5. Step 5: Solve for x
   x = 12,903,049.54/3,942.28
6. Step 6: Final answer
   x = 3,272.99