Finding the Fourth Proportional to 2,489.69, 3,735.25 and 1,028.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,489.69 : 3,735.25 = 1,028.09 : x
2. Step 2: Convert to fraction form
   2,489.69/3,735.25 = 1,028.09/x
3. Step 3: Cross multiply
   2,489.69x = 3,735.25 × 1,028.09
4. Step 4: Simplify right side
   2,489.69x = 3,840,151.93
5. Step 5: Solve for x
   x = 3,840,151.93/2,489.69
6. Step 6: Final answer
   x = 1,542.42