Finding the Fourth Proportional to 1,723.62, 2,583.15 and 683.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,723.62 : 2,583.15 = 683.05 : x
2. Step 2: Convert to fraction form
   1,723.62/2,583.15 = 683.05/x
3. Step 3: Cross multiply
   1,723.62x = 2,583.15 × 683.05
4. Step 4: Simplify right side
   1,723.62x = 1,764,429.81
5. Step 5: Solve for x
   x = 1,764,429.81/1,723.62
6. Step 6: Final answer
   x = 1,023.68