Finding the Fourth Proportional to 2,355.60, 3,248.82 and 1,647.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.60 : 3,248.82 = 1,647.18 : x
2. Step 2: Convert to fraction form
   2,355.60/3,248.82 = 1,647.18/x
3. Step 3: Cross multiply
   2,355.60x = 3,248.82 × 1,647.18
4. Step 4: Simplify right side
   2,355.60x = 5,351,391.33
5. Step 5: Solve for x
   x = 5,351,391.33/2,355.60
6. Step 6: Final answer
   x = 2,271.77