Finding the Fourth Proportional to 2,217.25, 3,327.16 and 1,230.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.25 : 3,327.16 = 1,230.89 : x
2. Step 2: Convert to fraction form
   2,217.25/3,327.16 = 1,230.89/x
3. Step 3: Cross multiply
   2,217.25x = 3,327.16 × 1,230.89
4. Step 4: Simplify right side
   2,217.25x = 4,095,365.12
5. Step 5: Solve for x
   x = 4,095,365.12/2,217.25
6. Step 6: Final answer
   x = 1,847.05