Finding the Fourth Proportional to 3,964.69, 5,471.81 and 2,286.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.69 : 5,471.81 = 2,286.07 : x
2. Step 2: Convert to fraction form
   3,964.69/5,471.81 = 2,286.07/x
3. Step 3: Cross multiply
   3,964.69x = 5,471.81 × 2,286.07
4. Step 4: Simplify right side
   3,964.69x = 12,508,913.33
5. Step 5: Solve for x
   x = 12,508,913.33/3,964.69
6. Step 6: Final answer
   x = 3,155.08