Finding the Fourth Proportional to 2,081.82, 2,873.43 and 1,296.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.82 : 2,873.43 = 1,296.78 : x
2. Step 2: Convert to fraction form
   2,081.82/2,873.43 = 1,296.78/x
3. Step 3: Cross multiply
   2,081.82x = 2,873.43 × 1,296.78
4. Step 4: Simplify right side
   2,081.82x = 3,726,206.56
5. Step 5: Solve for x
   x = 3,726,206.56/2,081.82
6. Step 6: Final answer
   x = 1,789.88