Finding the Fourth Proportional to 2,301.69, 3,449.49 and 839.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.69 : 3,449.49 = 839.43 : x
2. Step 2: Convert to fraction form
   2,301.69/3,449.49 = 839.43/x
3. Step 3: Cross multiply
   2,301.69x = 3,449.49 × 839.43
4. Step 4: Simplify right side
   2,301.69x = 2,895,605.39
5. Step 5: Solve for x
   x = 2,895,605.39/2,301.69
6. Step 6: Final answer
   x = 1,258.03