Finding the Fourth Proportional to 2,336.16, 3,223.76 and 1,288.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,336.16 : 3,223.76 = 1,288.23 : x
2. Step 2: Convert to fraction form
   2,336.16/3,223.76 = 1,288.23/x
3. Step 3: Cross multiply
   2,336.16x = 3,223.76 × 1,288.23
4. Step 4: Simplify right side
   2,336.16x = 4,152,937.90
5. Step 5: Solve for x
   x = 4,152,937.90/2,336.16
6. Step 6: Final answer
   x = 1,777.68