Finding the Fourth Proportional to 2,096.67, 3,146.49 and 864.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.67 : 3,146.49 = 864.15 : x
2. Step 2: Convert to fraction form
   2,096.67/3,146.49 = 864.15/x
3. Step 3: Cross multiply
   2,096.67x = 3,146.49 × 864.15
4. Step 4: Simplify right side
   2,096.67x = 2,719,039.33
5. Step 5: Solve for x
   x = 2,719,039.33/2,096.67
6. Step 6: Final answer
   x = 1,296.84