Finding the Fourth Proportional to 1,879.39, 2,593.61 and 1,028.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,879.39 : 2,593.61 = 1,028.69 : x
2. Step 2: Convert to fraction form
   1,879.39/2,593.61 = 1,028.69/x
3. Step 3: Cross multiply
   1,879.39x = 2,593.61 × 1,028.69
4. Step 4: Simplify right side
   1,879.39x = 2,668,020.67
5. Step 5: Solve for x
   x = 2,668,020.67/1,879.39
6. Step 6: Final answer
   x = 1,419.62