Finding the Fourth Proportional to 3,198.91, 4,796.02 and 2,156.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,198.91 : 4,796.02 = 2,156.31 : x
2. Step 2: Convert to fraction form
   3,198.91/4,796.02 = 2,156.31/x
3. Step 3: Cross multiply
   3,198.91x = 4,796.02 × 2,156.31
4. Step 4: Simplify right side
   3,198.91x = 10,341,705.89
5. Step 5: Solve for x
   x = 10,341,705.89/3,198.91
6. Step 6: Final answer
   x = 3,232.88