Finding the Fourth Proportional to 2,104.22, 3,155.52 and 871.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.22 : 3,155.52 = 871.33 : x
2. Step 2: Convert to fraction form
   2,104.22/3,155.52 = 871.33/x
3. Step 3: Cross multiply
   2,104.22x = 3,155.52 × 871.33
4. Step 4: Simplify right side
   2,104.22x = 2,749,499.24
5. Step 5: Solve for x
   x = 2,749,499.24/2,104.22
6. Step 6: Final answer
   x = 1,306.66