Finding the Fourth Proportional to 2,662.72, 3,674.90 and 1,919.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.72 : 3,674.90 = 1,919.14 : x
2. Step 2: Convert to fraction form
   2,662.72/3,674.90 = 1,919.14/x
3. Step 3: Cross multiply
   2,662.72x = 3,674.90 × 1,919.14
4. Step 4: Simplify right side
   2,662.72x = 7,052,643.20
5. Step 5: Solve for x
   x = 7,052,643.20/2,662.72
6. Step 6: Final answer
   x = 2,648.66