Finding the Fourth Proportional to 2,123.28, 3,184.25 and 717.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.28 : 3,184.25 = 717.43 : x
2. Step 2: Convert to fraction form
   2,123.28/3,184.25 = 717.43/x
3. Step 3: Cross multiply
   2,123.28x = 3,184.25 × 717.43
4. Step 4: Simplify right side
   2,123.28x = 2,284,460.56
5. Step 5: Solve for x
   x = 2,284,460.56/2,123.28
6. Step 6: Final answer
   x = 1,075.91