Finding the Fourth Proportional to 2,144.14, 3,215.89 and 683.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.14 : 3,215.89 = 683.11 : x
2. Step 2: Convert to fraction form
   2,144.14/3,215.89 = 683.11/x
3. Step 3: Cross multiply
   2,144.14x = 3,215.89 × 683.11
4. Step 4: Simplify right side
   2,144.14x = 2,196,806.62
5. Step 5: Solve for x
   x = 2,196,806.62/2,144.14
6. Step 6: Final answer
   x = 1,024.56