Finding the Fourth Proportional to 3,086.42, 4,259.88 and 2,144.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,086.42 : 4,259.88 = 2,144.18 : x
2. Step 2: Convert to fraction form
   3,086.42/4,259.88 = 2,144.18/x
3. Step 3: Cross multiply
   3,086.42x = 4,259.88 × 2,144.18
4. Step 4: Simplify right side
   3,086.42x = 9,133,949.50
5. Step 5: Solve for x
   x = 9,133,949.50/3,086.42
6. Step 6: Final answer
   x = 2,959.40