Finding the Fourth Proportional to 1,982.55, 2,974.17 and 683.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.55 : 2,974.17 = 683.72 : x
2. Step 2: Convert to fraction form
   1,982.55/2,974.17 = 683.72/x
3. Step 3: Cross multiply
   1,982.55x = 2,974.17 × 683.72
4. Step 4: Simplify right side
   1,982.55x = 2,033,494.51
5. Step 5: Solve for x
   x = 2,033,494.51/1,982.55
6. Step 6: Final answer
   x = 1,025.69