Finding the Fourth Proportional to 3,969.32, 5,478.03 and 2,397.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.32 : 5,478.03 = 2,397.38 : x
2. Step 2: Convert to fraction form
   3,969.32/5,478.03 = 2,397.38/x
3. Step 3: Cross multiply
   3,969.32x = 5,478.03 × 2,397.38
4. Step 4: Simplify right side
   3,969.32x = 13,132,892.17
5. Step 5: Solve for x
   x = 13,132,892.17/3,969.32
6. Step 6: Final answer
   x = 3,308.60