Finding the Fourth Proportional to 2,741.20, 4,112.72 and 892.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,741.20 : 4,112.72 = 892.37 : x
2. Step 2: Convert to fraction form
   2,741.20/4,112.72 = 892.37/x
3. Step 3: Cross multiply
   2,741.20x = 4,112.72 × 892.37
4. Step 4: Simplify right side
   2,741.20x = 3,670,067.95
5. Step 5: Solve for x
   x = 3,670,067.95/2,741.20
6. Step 6: Final answer
   x = 1,338.85