Finding the Fourth Proportional to 2,762.11, 4,144.71 and 2,147.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,762.11 : 4,144.71 = 2,147.05 : x
2. Step 2: Convert to fraction form
   2,762.11/4,144.71 = 2,147.05/x
3. Step 3: Cross multiply
   2,762.11x = 4,144.71 × 2,147.05
4. Step 4: Simplify right side
   2,762.11x = 8,898,899.61
5. Step 5: Solve for x
   x = 8,898,899.61/2,762.11
6. Step 6: Final answer
   x = 3,221.78