Finding the Fourth Proportional to 2,839.43, 4,259.18 and 1,085.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,839.43 : 4,259.18 = 1,085.24 : x
2. Step 2: Convert to fraction form
   2,839.43/4,259.18 = 1,085.24/x
3. Step 3: Cross multiply
   2,839.43x = 4,259.18 × 1,085.24
4. Step 4: Simplify right side
   2,839.43x = 4,622,245.86
5. Step 5: Solve for x
   x = 4,622,245.86/2,839.43
6. Step 6: Final answer
   x = 1,627.88