Finding the Fourth Proportional to 2,758.33, 4,137.77 and 908.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.33 : 4,137.77 = 908.69 : x
2. Step 2: Convert to fraction form
   2,758.33/4,137.77 = 908.69/x
3. Step 3: Cross multiply
   2,758.33x = 4,137.77 × 908.69
4. Step 4: Simplify right side
   2,758.33x = 3,759,945.68
5. Step 5: Solve for x
   x = 3,759,945.68/2,758.33
6. Step 6: Final answer
   x = 1,363.12