Finding the Fourth Proportional to 2,728.24, 4,090.74 and 996.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.24 : 4,090.74 = 996.28 : x
2. Step 2: Convert to fraction form
   2,728.24/4,090.74 = 996.28/x
3. Step 3: Cross multiply
   2,728.24x = 4,090.74 × 996.28
4. Step 4: Simplify right side
   2,728.24x = 4,075,522.45
5. Step 5: Solve for x
   x = 4,075,522.45/2,728.24
6. Step 6: Final answer
   x = 1,493.83