Finding the Fourth Proportional to 2,766.63, 3,811.26 and 2,057.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.63 : 3,811.26 = 2,057.27 : x
2. Step 2: Convert to fraction form
   2,766.63/3,811.26 = 2,057.27/x
3. Step 3: Cross multiply
   2,766.63x = 3,811.26 × 2,057.27
4. Step 4: Simplify right side
   2,766.63x = 7,840,779.52
5. Step 5: Solve for x
   x = 7,840,779.52/2,766.63
6. Step 6: Final answer
   x = 2,834.05