Finding the Fourth Proportional to 2,594.25, 3,891.34 and 839.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,594.25 : 3,891.34 = 839.30 : x
2. Step 2: Convert to fraction form
   2,594.25/3,891.34 = 839.30/x
3. Step 3: Cross multiply
   2,594.25x = 3,891.34 × 839.30
4. Step 4: Simplify right side
   2,594.25x = 3,265,999.67
5. Step 5: Solve for x
   x = 3,265,999.67/2,594.25
6. Step 6: Final answer
   x = 1,258.94