Finding the Fourth Proportional to 3,938.28, 5,435.82 and 2,367.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.28 : 5,435.82 = 2,367.30 : x
2. Step 2: Convert to fraction form
   3,938.28/5,435.82 = 2,367.30/x
3. Step 3: Cross multiply
   3,938.28x = 5,435.82 × 2,367.30
4. Step 4: Simplify right side
   3,938.28x = 12,868,216.69
5. Step 5: Solve for x
   x = 12,868,216.69/3,938.28
6. Step 6: Final answer
   x = 3,267.47