Finding the Fourth Proportional to 2,075.33, 3,113.08 and 965.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.33 : 3,113.08 = 965.78 : x
2. Step 2: Convert to fraction form
   2,075.33/3,113.08 = 965.78/x
3. Step 3: Cross multiply
   2,075.33x = 3,113.08 × 965.78
4. Step 4: Simplify right side
   2,075.33x = 3,006,555.77
5. Step 5: Solve for x
   x = 3,006,555.77/2,075.33
6. Step 6: Final answer
   x = 1,448.72