Finding the Fourth Proportional to 2,144.27, 3,215.60 and 682.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.27 : 3,215.60 = 682.63 : x
2. Step 2: Convert to fraction form
   2,144.27/3,215.60 = 682.63/x
3. Step 3: Cross multiply
   2,144.27x = 3,215.60 × 682.63
4. Step 4: Simplify right side
   2,144.27x = 2,195,056.14
5. Step 5: Solve for x
   x = 2,195,056.14/2,144.27
6. Step 6: Final answer
   x = 1,023.68