Finding the Fourth Proportional to 1,644.89, 2,468.57 and 1,229.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644.89 : 2,468.57 = 1,229.45 : x
2. Step 2: Convert to fraction form
   1,644.89/2,468.57 = 1,229.45/x
3. Step 3: Cross multiply
   1,644.89x = 2,468.57 × 1,229.45
4. Step 4: Simplify right side
   1,644.89x = 3,034,964.90
5. Step 5: Solve for x
   x = 3,034,964.90/1,644.89
6. Step 6: Final answer
   x = 1,845.09