Finding the Fourth Proportional to 2,687.27, 3,698.33 and 2,273.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687.27 : 3,698.33 = 2,273.05 : x
2. Step 2: Convert to fraction form
   2,687.27/3,698.33 = 2,273.05/x
3. Step 3: Cross multiply
   2,687.27x = 3,698.33 × 2,273.05
4. Step 4: Simplify right side
   2,687.27x = 8,406,482.26
5. Step 5: Solve for x
   x = 8,406,482.26/2,687.27
6. Step 6: Final answer
   x = 3,128.27