Finding the Fourth Proportional to 2,301.27, 3,449.13 and 839.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.27 : 3,449.13 = 839.62 : x
2. Step 2: Convert to fraction form
   2,301.27/3,449.13 = 839.62/x
3. Step 3: Cross multiply
   2,301.27x = 3,449.13 × 839.62
4. Step 4: Simplify right side
   2,301.27x = 2,895,958.53
5. Step 5: Solve for x
   x = 2,895,958.53/2,301.27
6. Step 6: Final answer
   x = 1,258.42