Finding the Fourth Proportional to 2,665.33, 3,997.53 and 717.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.33 : 3,997.53 = 717.08 : x
2. Step 2: Convert to fraction form
   2,665.33/3,997.53 = 717.08/x
3. Step 3: Cross multiply
   2,665.33x = 3,997.53 × 717.08
4. Step 4: Simplify right side
   2,665.33x = 2,866,548.81
5. Step 5: Solve for x
   x = 2,866,548.81/2,665.33
6. Step 6: Final answer
   x = 1,075.49