Finding the Fourth Proportional to 5,222.01, 7,206.32 and 2,864.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,222.01 : 7,206.32 = 2,864.15 : x
2. Step 2: Convert to fraction form
   5,222.01/7,206.32 = 2,864.15/x
3. Step 3: Cross multiply
   5,222.01x = 7,206.32 × 2,864.15
4. Step 4: Simplify right side
   5,222.01x = 20,639,952.56
5. Step 5: Solve for x
   x = 20,639,952.56/5,222.01
6. Step 6: Final answer
   x = 3,952.49