Finding the Fourth Proportional to 3,171.22, 4,755.57 and 1,222.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,171.22 : 4,755.57 = 1,222.18 : x
2. Step 2: Convert to fraction form
   3,171.22/4,755.57 = 1,222.18/x
3. Step 3: Cross multiply
   3,171.22x = 4,755.57 × 1,222.18
4. Step 4: Simplify right side
   3,171.22x = 5,812,162.54
5. Step 5: Solve for x
   x = 5,812,162.54/3,171.22
6. Step 6: Final answer
   x = 1,832.78