Finding the Fourth Proportional to 3,822.93, 5,274.72 and 2,229.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,822.93 : 5,274.72 = 2,229.12 : x
2. Step 2: Convert to fraction form
   3,822.93/5,274.72 = 2,229.12/x
3. Step 3: Cross multiply
   3,822.93x = 5,274.72 × 2,229.12
4. Step 4: Simplify right side
   3,822.93x = 11,757,983.85
5. Step 5: Solve for x
   x = 11,757,983.85/3,822.93
6. Step 6: Final answer
   x = 3,075.65