Finding the Fourth Proportional to 4,772.47, 7,159.38 and 1,485.89

Step by Step Solution

1. Step 1: Write the proportion equation
   4,772.47 : 7,159.38 = 1,485.89 : x
2. Step 2: Convert to fraction form
   4,772.47/7,159.38 = 1,485.89/x
3. Step 3: Cross multiply
   4,772.47x = 7,159.38 × 1,485.89
4. Step 4: Simplify right side
   4,772.47x = 10,638,043.72
5. Step 5: Solve for x
   x = 10,638,043.72/4,772.47
6. Step 6: Final answer
   x = 2,229.05