Finding the Fourth Proportional to 2,009.72, 3,014.89 and 711.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.72 : 3,014.89 = 711.09 : x
2. Step 2: Convert to fraction form
   2,009.72/3,014.89 = 711.09/x
3. Step 3: Cross multiply
   2,009.72x = 3,014.89 × 711.09
4. Step 4: Simplify right side
   2,009.72x = 2,143,856.35
5. Step 5: Solve for x
   x = 2,143,856.35/2,009.72
6. Step 6: Final answer
   x = 1,066.74