Finding the Fourth Proportional to 2,103.82, 3,155.49 and 717.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.82 : 3,155.49 = 717.16 : x
2. Step 2: Convert to fraction form
   2,103.82/3,155.49 = 717.16/x
3. Step 3: Cross multiply
   2,103.82x = 3,155.49 × 717.16
4. Step 4: Simplify right side
   2,103.82x = 2,262,991.21
5. Step 5: Solve for x
   x = 2,262,991.21/2,103.82
6. Step 6: Final answer
   x = 1,075.66