Finding the Fourth Proportional to 2,075.29, 2,863.81 and 1,131.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.29 : 2,863.81 = 1,131.05 : x
2. Step 2: Convert to fraction form
   2,075.29/2,863.81 = 1,131.05/x
3. Step 3: Cross multiply
   2,075.29x = 2,863.81 × 1,131.05
4. Step 4: Simplify right side
   2,075.29x = 3,239,112.30
5. Step 5: Solve for x
   x = 3,239,112.30/2,075.29
6. Step 6: Final answer
   x = 1,560.80