Finding the Fourth Proportional to 2,147.76, 3,222.72 and 1,627.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.76 : 3,222.72 = 1,627.59 : x
2. Step 2: Convert to fraction form
   2,147.76/3,222.72 = 1,627.59/x
3. Step 3: Cross multiply
   2,147.76x = 3,222.72 × 1,627.59
4. Step 4: Simplify right side
   2,147.76x = 5,245,266.84
5. Step 5: Solve for x
   x = 5,245,266.84/2,147.76
6. Step 6: Final answer
   x = 2,442.20