Finding the Fourth Proportional to 1,724.07, 2,584.56 and 683.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.07 : 2,584.56 = 683.38 : x
2. Step 2: Convert to fraction form
   1,724.07/2,584.56 = 683.38/x
3. Step 3: Cross multiply
   1,724.07x = 2,584.56 × 683.38
4. Step 4: Simplify right side
   1,724.07x = 1,766,223.69
5. Step 5: Solve for x
   x = 1,766,223.69/1,724.07
6. Step 6: Final answer
   x = 1,024.45