Finding the Fourth Proportional to 2,075.64, 2,864.45 and 1,131.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.64 : 2,864.45 = 1,131.46 : x
2. Step 2: Convert to fraction form
   2,075.64/2,864.45 = 1,131.46/x
3. Step 3: Cross multiply
   2,075.64x = 2,864.45 × 1,131.46
4. Step 4: Simplify right side
   2,075.64x = 3,241,022.38
5. Step 5: Solve for x
   x = 3,241,022.38/2,075.64
6. Step 6: Final answer
   x = 1,561.46