Finding the Fourth Proportional to 2,065.79, 2,849.59 and 1,279.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,065.79 : 2,849.59 = 1,279.28 : x
2. Step 2: Convert to fraction form
   2,065.79/2,849.59 = 1,279.28/x
3. Step 3: Cross multiply
   2,065.79x = 2,849.59 × 1,279.28
4. Step 4: Simplify right side
   2,065.79x = 3,645,423.50
5. Step 5: Solve for x
   x = 3,645,423.50/2,065.79
6. Step 6: Final answer
   x = 1,764.66