Finding the Fourth Proportional to 3,320.96, 4,983.71 and 2,151.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,320.96 : 4,983.71 = 2,151.50 : x
2. Step 2: Convert to fraction form
   3,320.96/4,983.71 = 2,151.50/x
3. Step 3: Cross multiply
   3,320.96x = 4,983.71 × 2,151.50
4. Step 4: Simplify right side
   3,320.96x = 10,722,441.31
5. Step 5: Solve for x
   x = 10,722,441.31/3,320.96
6. Step 6: Final answer
   x = 3,228.72