Finding the Fourth Proportional to 2,336.50, 3,224.39 and 1,288.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,336.50 : 3,224.39 = 1,288.59 : x
2. Step 2: Convert to fraction form
   2,336.50/3,224.39 = 1,288.59/x
3. Step 3: Cross multiply
   2,336.50x = 3,224.39 × 1,288.59
4. Step 4: Simplify right side
   2,336.50x = 4,154,916.71
5. Step 5: Solve for x
   x = 4,154,916.71/2,336.50
6. Step 6: Final answer
   x = 1,778.27