Finding the Fourth Proportional to 2,097.09, 3,144.56 and 864.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.09 : 3,144.56 = 864.27 : x
2. Step 2: Convert to fraction form
   2,097.09/3,144.56 = 864.27/x
3. Step 3: Cross multiply
   2,097.09x = 3,144.56 × 864.27
4. Step 4: Simplify right side
   2,097.09x = 2,717,744.55
5. Step 5: Solve for x
   x = 2,717,744.55/2,097.09
6. Step 6: Final answer
   x = 1,295.96