Finding the Fourth Proportional to 2,104.41, 3,155.85 and 871.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.41 : 3,155.85 = 871.59 : x
2. Step 2: Convert to fraction form
   2,104.41/3,155.85 = 871.59/x
3. Step 3: Cross multiply
   2,104.41x = 3,155.85 × 871.59
4. Step 4: Simplify right side
   2,104.41x = 2,750,607.30
5. Step 5: Solve for x
   x = 2,750,607.30/2,104.41
6. Step 6: Final answer
   x = 1,307.07