Finding the Fourth Proportional to 2,336.52, 3,224.12 and 1,288.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,336.52 : 3,224.12 = 1,288.38 : x
2. Step 2: Convert to fraction form
   2,336.52/3,224.12 = 1,288.38/x
3. Step 3: Cross multiply
   2,336.52x = 3,224.12 × 1,288.38
4. Step 4: Simplify right side
   2,336.52x = 4,153,891.73
5. Step 5: Solve for x
   x = 4,153,891.73/2,336.52
6. Step 6: Final answer
   x = 1,777.81