Finding the Fourth Proportional to 2,439.05, 3,658.33 and 683.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.05 : 3,658.33 = 683.89 : x
2. Step 2: Convert to fraction form
   2,439.05/3,658.33 = 683.89/x
3. Step 3: Cross multiply
   2,439.05x = 3,658.33 × 683.89
4. Step 4: Simplify right side
   2,439.05x = 2,501,887.01
5. Step 5: Solve for x
   x = 2,501,887.01/2,439.05
6. Step 6: Final answer
   x = 1,025.77