Finding the Fourth Proportional to 2,075.78, 3,111.24 and 1,151.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.78 : 3,111.24 = 1,151.12 : x
2. Step 2: Convert to fraction form
   2,075.78/3,111.24 = 1,151.12/x
3. Step 3: Cross multiply
   2,075.78x = 3,111.24 × 1,151.12
4. Step 4: Simplify right side
   2,075.78x = 3,581,410.59
5. Step 5: Solve for x
   x = 3,581,410.59/2,075.78
6. Step 6: Final answer
   x = 1,725.33