Finding the Fourth Proportional to 4,911.91, 7,371.72 and 1,992.27

Step by Step Solution

1. Step 1: Write the proportion equation
   4,911.91 : 7,371.72 = 1,992.27 : x
2. Step 2: Convert to fraction form
   4,911.91/7,371.72 = 1,992.27/x
3. Step 3: Cross multiply
   4,911.91x = 7,371.72 × 1,992.27
4. Step 4: Simplify right side
   4,911.91x = 14,686,456.60
5. Step 5: Solve for x
   x = 14,686,456.60/4,911.91
6. Step 6: Final answer
   x = 2,989.97