Finding the Fourth Proportional to 2,207.89, 3,044.57 and 1,647.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,207.89 : 3,044.57 = 1,647.47 : x
2. Step 2: Convert to fraction form
   2,207.89/3,044.57 = 1,647.47/x
3. Step 3: Cross multiply
   2,207.89x = 3,044.57 × 1,647.47
4. Step 4: Simplify right side
   2,207.89x = 5,015,822.52
5. Step 5: Solve for x
   x = 5,015,822.52/2,207.89
6. Step 6: Final answer
   x = 2,271.78