Finding the Fourth Proportional to 2,153.37, 3,227.31 and 1,229.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.37 : 3,227.31 = 1,229.43 : x
2. Step 2: Convert to fraction form
   2,153.37/3,227.31 = 1,229.43/x
3. Step 3: Cross multiply
   2,153.37x = 3,227.31 × 1,229.43
4. Step 4: Simplify right side
   2,153.37x = 3,967,751.73
5. Step 5: Solve for x
   x = 3,967,751.73/2,153.37
6. Step 6: Final answer
   x = 1,842.58