Finding the Fourth Proportional to 3,796.72, 5,692.28 and 1,921.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,796.72 : 5,692.28 = 1,921.37 : x
2. Step 2: Convert to fraction form
   3,796.72/5,692.28 = 1,921.37/x
3. Step 3: Cross multiply
   3,796.72x = 5,692.28 × 1,921.37
4. Step 4: Simplify right side
   3,796.72x = 10,936,969.97
5. Step 5: Solve for x
   x = 10,936,969.97/3,796.72
6. Step 6: Final answer
   x = 2,880.63