Finding the Fourth Proportional to 2,098.71, 3,148.17 and 800.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.71 : 3,148.17 = 800.28 : x
2. Step 2: Convert to fraction form
   2,098.71/3,148.17 = 800.28/x
3. Step 3: Cross multiply
   2,098.71x = 3,148.17 × 800.28
4. Step 4: Simplify right side
   2,098.71x = 2,519,417.49
5. Step 5: Solve for x
   x = 2,519,417.49/2,098.71
6. Step 6: Final answer
   x = 1,200.46