Finding the Fourth Proportional to 2,951.69, 4,426.49 and 871.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,951.69 : 4,426.49 = 871.14 : x
2. Step 2: Convert to fraction form
   2,951.69/4,426.49 = 871.14/x
3. Step 3: Cross multiply
   2,951.69x = 4,426.49 × 871.14
4. Step 4: Simplify right side
   2,951.69x = 3,856,070.37
5. Step 5: Solve for x
   x = 3,856,070.37/2,951.69
6. Step 6: Final answer
   x = 1,306.40