Finding the Fourth Proportional to 2,098.89, 3,149.75 and 866.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.89 : 3,149.75 = 866.27 : x
2. Step 2: Convert to fraction form
   2,098.89/3,149.75 = 866.27/x
3. Step 3: Cross multiply
   2,098.89x = 3,149.75 × 866.27
4. Step 4: Simplify right side
   2,098.89x = 2,728,541.81
5. Step 5: Solve for x
   x = 2,728,541.81/2,098.89
6. Step 6: Final answer
   x = 1,299.99