Finding the Fourth Proportional to 3,662.72, 5,489.22 and 3,173.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,662.72 : 5,489.22 = 3,173.48 : x
2. Step 2: Convert to fraction form
   3,662.72/5,489.22 = 3,173.48/x
3. Step 3: Cross multiply
   3,662.72x = 5,489.22 × 3,173.48
4. Step 4: Simplify right side
   3,662.72x = 17,419,929.89
5. Step 5: Solve for x
   x = 17,419,929.89/3,662.72
6. Step 6: Final answer
   x = 4,756.01