Finding the Fourth Proportional to 2,216.39, 3,323.49 and 1,292.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.39 : 3,323.49 = 1,292.18 : x
2. Step 2: Convert to fraction form
   2,216.39/3,323.49 = 1,292.18/x
3. Step 3: Cross multiply
   2,216.39x = 3,323.49 × 1,292.18
4. Step 4: Simplify right side
   2,216.39x = 4,294,530.69
5. Step 5: Solve for x
   x = 4,294,530.69/2,216.39
6. Step 6: Final answer
   x = 1,937.63