Finding the Fourth Proportional to 1,609.29, 2,414.52 and 839.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609.29 : 2,414.52 = 839.25 : x
2. Step 2: Convert to fraction form
   1,609.29/2,414.52 = 839.25/x
3. Step 3: Cross multiply
   1,609.29x = 2,414.52 × 839.25
4. Step 4: Simplify right side
   1,609.29x = 2,026,385.91
5. Step 5: Solve for x
   x = 2,026,385.91/1,609.29
6. Step 6: Final answer
   x = 1,259.18