Finding the Fourth Proportional to 2,096.84, 3,145.33 and 864.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.84 : 3,145.33 = 864.07 : x
2. Step 2: Convert to fraction form
   2,096.84/3,145.33 = 864.07/x
3. Step 3: Cross multiply
   2,096.84x = 3,145.33 × 864.07
4. Step 4: Simplify right side
   2,096.84x = 2,717,778.51
5. Step 5: Solve for x
   x = 2,717,778.51/2,096.84
6. Step 6: Final answer
   x = 1,296.13