Finding the Fourth Proportional to 2,065.33, 2,850.71 and 1,278.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.33 : 2,850.71 = 1,278.94 : x
2. Step 2: Convert to fraction form
   2,065.33/2,850.71 = 1,278.94/x
3. Step 3: Cross multiply
   2,065.33x = 2,850.71 × 1,278.94
4. Step 4: Simplify right side
   2,065.33x = 3,645,887.05
5. Step 5: Solve for x
   x = 3,645,887.05/2,065.33
6. Step 6: Final answer
   x = 1,765.28