Finding the Fourth Proportional to 2,098.10, 3,147.53 and 864.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.10 : 3,147.53 = 864.82 : x
2. Step 2: Convert to fraction form
   2,098.10/3,147.53 = 864.82/x
3. Step 3: Cross multiply
   2,098.10x = 3,147.53 × 864.82
4. Step 4: Simplify right side
   2,098.10x = 2,722,046.89
5. Step 5: Solve for x
   x = 2,722,046.89/2,098.10
6. Step 6: Final answer
   x = 1,297.39