Finding the Fourth Proportional to 2,144.17, 3,216.05 and 683.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.17 : 3,216.05 = 683.07 : x
2. Step 2: Convert to fraction form
   2,144.17/3,216.05 = 683.07/x
3. Step 3: Cross multiply
   2,144.17x = 3,216.05 × 683.07
4. Step 4: Simplify right side
   2,144.17x = 2,196,787.27
5. Step 5: Solve for x
   x = 2,196,787.27/2,144.17
6. Step 6: Final answer
   x = 1,024.54