Finding the Fourth Proportional to 2,100.09, 3,151.08 and 801.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.09 : 3,151.08 = 801.12 : x
2. Step 2: Convert to fraction form
   2,100.09/3,151.08 = 801.12/x
3. Step 3: Cross multiply
   2,100.09x = 3,151.08 × 801.12
4. Step 4: Simplify right side
   2,100.09x = 2,524,393.21
5. Step 5: Solve for x
   x = 2,524,393.21/2,100.09
6. Step 6: Final answer
   x = 1,202.04