Finding the Fourth Proportional to 2,336.18, 3,223.94 and 1,288.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,336.18 : 3,223.94 = 1,288.24 : x
2. Step 2: Convert to fraction form
   2,336.18/3,223.94 = 1,288.24/x
3. Step 3: Cross multiply
   2,336.18x = 3,223.94 × 1,288.24
4. Step 4: Simplify right side
   2,336.18x = 4,153,208.47
5. Step 5: Solve for x
   x = 4,153,208.47/2,336.18
6. Step 6: Final answer
   x = 1,777.78