Finding the Fourth Proportional to 2,075.78, 3,112.82 and 1,035.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.78 : 3,112.82 = 1,035.40 : x
2. Step 2: Convert to fraction form
   2,075.78/3,112.82 = 1,035.40/x
3. Step 3: Cross multiply
   2,075.78x = 3,112.82 × 1,035.40
4. Step 4: Simplify right side
   2,075.78x = 3,223,013.83
5. Step 5: Solve for x
   x = 3,223,013.83/2,075.78
6. Step 6: Final answer
   x = 1,552.68