Finding the Fourth Proportional to 2,075.63, 3,111.39 and 965.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.63 : 3,111.39 = 965.39 : x
2. Step 2: Convert to fraction form
   2,075.63/3,111.39 = 965.39/x
3. Step 3: Cross multiply
   2,075.63x = 3,111.39 × 965.39
4. Step 4: Simplify right side
   2,075.63x = 3,003,699.19
5. Step 5: Solve for x
   x = 3,003,699.19/2,075.63
6. Step 6: Final answer
   x = 1,447.13