Finding the Fourth Proportional to 2,944.72, 4,416.36 and 892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,944.72 : 4,416.36 = 892.72 : x
2. Step 2: Convert to fraction form
   2,944.72/4,416.36 = 892.72/x
3. Step 3: Cross multiply
   2,944.72x = 4,416.36 × 892.72
4. Step 4: Simplify right side
   2,944.72x = 3,942,572.90
5. Step 5: Solve for x
   x = 3,942,572.90/2,944.72
6. Step 6: Final answer
   x = 1,338.86