Finding the Fourth Proportional to 2,336.10, 3,223.78 and 1,288.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,336.10 : 3,223.78 = 1,288.14 : x
2. Step 2: Convert to fraction form
   2,336.10/3,223.78 = 1,288.14/x
3. Step 3: Cross multiply
   2,336.10x = 3,223.78 × 1,288.14
4. Step 4: Simplify right side
   2,336.10x = 4,152,679.97
5. Step 5: Solve for x
   x = 4,152,679.97/2,336.10
6. Step 6: Final answer
   x = 1,777.61