Finding the Fourth Proportional to 2,805.86, 3,871.82 and 2,711.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,805.86 : 3,871.82 = 2,711.54 : x
2. Step 2: Convert to fraction form
   2,805.86/3,871.82 = 2,711.54/x
3. Step 3: Cross multiply
   2,805.86x = 3,871.82 × 2,711.54
4. Step 4: Simplify right side
   2,805.86x = 10,498,611.26
5. Step 5: Solve for x
   x = 10,498,611.26/2,805.86
6. Step 6: Final answer
   x = 3,741.67