Finding the Fourth Proportional to 2,098.88, 3,148.58 and 800.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.88 : 3,148.58 = 800.72 : x
2. Step 2: Convert to fraction form
   2,098.88/3,148.58 = 800.72/x
3. Step 3: Cross multiply
   2,098.88x = 3,148.58 × 800.72
4. Step 4: Simplify right side
   2,098.88x = 2,521,130.98
5. Step 5: Solve for x
   x = 2,521,130.98/2,098.88
6. Step 6: Final answer
   x = 1,201.18