Finding the Fourth Proportional to 2,075.80, 2,864.58 and 1,144.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.80 : 2,864.58 = 1,144.28 : x
2. Step 2: Convert to fraction form
   2,075.80/2,864.58 = 1,144.28/x
3. Step 3: Cross multiply
   2,075.80x = 2,864.58 × 1,144.28
4. Step 4: Simplify right side
   2,075.80x = 3,277,881.60
5. Step 5: Solve for x
   x = 3,277,881.60/2,075.80
6. Step 6: Final answer
   x = 1,579.09