Finding the Fourth Proportional to 3,472.72, 4,791.12 and 2,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,472.72 : 4,791.12 = 2,146.72 : x
2. Step 2: Convert to fraction form
   3,472.72/4,791.12 = 2,146.72/x
3. Step 3: Cross multiply
   3,472.72x = 4,791.12 × 2,146.72
4. Step 4: Simplify right side
   3,472.72x = 10,285,193.13
5. Step 5: Solve for x
   x = 10,285,193.13/3,472.72
6. Step 6: Final answer
   x = 2,961.71