Finding the Fourth Proportional to 2,741.20, 4,111.68 and 892.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,741.20 : 4,111.68 = 892.42 : x
2. Step 2: Convert to fraction form
   2,741.20/4,111.68 = 892.42/x
3. Step 3: Cross multiply
   2,741.20x = 4,111.68 × 892.42
4. Step 4: Simplify right side
   2,741.20x = 3,669,345.47
5. Step 5: Solve for x
   x = 3,669,345.47/2,741.20
6. Step 6: Final answer
   x = 1,338.59