Finding the Fourth Proportional to 2,075.81, 2,864.56 and 1,144.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.81 : 2,864.56 = 1,144.25 : x
2. Step 2: Convert to fraction form
   2,075.81/2,864.56 = 1,144.25/x
3. Step 3: Cross multiply
   2,075.81x = 2,864.56 × 1,144.25
4. Step 4: Simplify right side
   2,075.81x = 3,277,772.78
5. Step 5: Solve for x
   x = 3,277,772.78/2,075.81
6. Step 6: Final answer
   x = 1,579.03