Finding the Fourth Proportional to 2,098.96, 3,148.55 and 800.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.96 : 3,148.55 = 800.53 : x
2. Step 2: Convert to fraction form
   2,098.96/3,148.55 = 800.53/x
3. Step 3: Cross multiply
   2,098.96x = 3,148.55 × 800.53
4. Step 4: Simplify right side
   2,098.96x = 2,520,504.73
5. Step 5: Solve for x
   x = 2,520,504.73/2,098.96
6. Step 6: Final answer
   x = 1,200.84