Finding the Fourth Proportional to 3,600.56, 5,395.98 and 3,172.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,600.56 : 5,395.98 = 3,172.88 : x
2. Step 2: Convert to fraction form
   3,600.56/5,395.98 = 3,172.88/x
3. Step 3: Cross multiply
   3,600.56x = 5,395.98 × 3,172.88
4. Step 4: Simplify right side
   3,600.56x = 17,120,797.02
5. Step 5: Solve for x
   x = 17,120,797.02/3,600.56
6. Step 6: Final answer
   x = 4,755.04