Finding the Fourth Proportional to 3,216.07, 4,436.78 and 2,271.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,216.07 : 4,436.78 = 2,271.71 : x
2. Step 2: Convert to fraction form
   3,216.07/4,436.78 = 2,271.71/x
3. Step 3: Cross multiply
   3,216.07x = 4,436.78 × 2,271.71
4. Step 4: Simplify right side
   3,216.07x = 10,079,077.23
5. Step 5: Solve for x
   x = 10,079,077.23/3,216.07
6. Step 6: Final answer
   x = 3,133.97