Finding the Fourth Proportional to 4,815.27, 7,222.59 and 1,528.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,815.27 : 7,222.59 = 1,528.56 : x
2. Step 2: Convert to fraction form
   4,815.27/7,222.59 = 1,528.56/x
3. Step 3: Cross multiply
   4,815.27x = 7,222.59 × 1,528.56
4. Step 4: Simplify right side
   4,815.27x = 11,040,162.17
5. Step 5: Solve for x
   x = 11,040,162.17/4,815.27
6. Step 6: Final answer
   x = 2,292.74