Finding the Fourth Proportional to 2,099.82, 3,151.05 and 801.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.82 : 3,151.05 = 801.42 : x
2. Step 2: Convert to fraction form
   2,099.82/3,151.05 = 801.42/x
3. Step 3: Cross multiply
   2,099.82x = 3,151.05 × 801.42
4. Step 4: Simplify right side
   2,099.82x = 2,525,314.49
5. Step 5: Solve for x
   x = 2,525,314.49/2,099.82
6. Step 6: Final answer
   x = 1,202.63