Finding the Fourth Proportional to 2,144.04, 3,216.17 and 683.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.04 : 3,216.17 = 683.31 : x
2. Step 2: Convert to fraction form
   2,144.04/3,216.17 = 683.31/x
3. Step 3: Cross multiply
   2,144.04x = 3,216.17 × 683.31
4. Step 4: Simplify right side
   2,144.04x = 2,197,641.12
5. Step 5: Solve for x
   x = 2,197,641.12/2,144.04
6. Step 6: Final answer
   x = 1,025.00