Finding the Fourth Proportional to 4,772.22, 7,158.27 and 1,485.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,772.22 : 7,158.27 = 1,485.30 : x
2. Step 2: Convert to fraction form
   4,772.22/7,158.27 = 1,485.30/x
3. Step 3: Cross multiply
   4,772.22x = 7,158.27 × 1,485.30
4. Step 4: Simplify right side
   4,772.22x = 10,632,178.43
5. Step 5: Solve for x
   x = 10,632,178.43/4,772.22
6. Step 6: Final answer
   x = 2,227.93