Finding the Fourth Proportional to 2,041.05, 3,061.89 and 871.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,041.05 : 3,061.89 = 871.05 : x
2. Step 2: Convert to fraction form
   2,041.05/3,061.89 = 871.05/x
3. Step 3: Cross multiply
   2,041.05x = 3,061.89 × 871.05
4. Step 4: Simplify right side
   2,041.05x = 2,667,059.28
5. Step 5: Solve for x
   x = 2,667,059.28/2,041.05
6. Step 6: Final answer
   x = 1,306.71