Finding the Fourth Proportional to 2,759.94, 4,139.03 and 910.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,759.94 : 4,139.03 = 910.71 : x
2. Step 2: Convert to fraction form
   2,759.94/4,139.03 = 910.71/x
3. Step 3: Cross multiply
   2,759.94x = 4,139.03 × 910.71
4. Step 4: Simplify right side
   2,759.94x = 3,769,458.29
5. Step 5: Solve for x
   x = 3,769,458.29/2,759.94
6. Step 6: Final answer
   x = 1,365.78