Finding the Fourth Proportional to 2,049.39, 3,074.73 and 864.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,049.39 : 3,074.73 = 864.05 : x
2. Step 2: Convert to fraction form
   2,049.39/3,074.73 = 864.05/x
3. Step 3: Cross multiply
   2,049.39x = 3,074.73 × 864.05
4. Step 4: Simplify right side
   2,049.39x = 2,656,720.46
5. Step 5: Solve for x
   x = 2,656,720.46/2,049.39
6. Step 6: Final answer
   x = 1,296.35