Finding the Fourth Proportional to 2,049.57, 3,075.72 and 817.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,049.57 : 3,075.72 = 817.23 : x
2. Step 2: Convert to fraction form
   2,049.57/3,075.72 = 817.23/x
3. Step 3: Cross multiply
   2,049.57x = 3,075.72 × 817.23
4. Step 4: Simplify right side
   2,049.57x = 2,513,570.66
5. Step 5: Solve for x
   x = 2,513,570.66/2,049.57
6. Step 6: Final answer
   x = 1,226.39