Finding the Fourth Proportional to 2,099.82, 3,150.54 and 801.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.82 : 3,150.54 = 801.39 : x
2. Step 2: Convert to fraction form
   2,099.82/3,150.54 = 801.39/x
3. Step 3: Cross multiply
   2,099.82x = 3,150.54 × 801.39
4. Step 4: Simplify right side
   2,099.82x = 2,524,811.25
5. Step 5: Solve for x
   x = 2,524,811.25/2,099.82
6. Step 6: Final answer
   x = 1,202.39