Finding the Fourth Proportional to 2,178.30, 3,266.22 and 717.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.30 : 3,266.22 = 717.33 : x
2. Step 2: Convert to fraction form
   2,178.30/3,266.22 = 717.33/x
3. Step 3: Cross multiply
   2,178.30x = 3,266.22 × 717.33
4. Step 4: Simplify right side
   2,178.30x = 2,342,957.59
5. Step 5: Solve for x
   x = 2,342,957.59/2,178.30
6. Step 6: Final answer
   x = 1,075.59