Finding the Fourth Proportional to 3,426.91, 4,729.24 and 2,150.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,426.91 : 4,729.24 = 2,150.55 : x
2. Step 2: Convert to fraction form
   3,426.91/4,729.24 = 2,150.55/x
3. Step 3: Cross multiply
   3,426.91x = 4,729.24 × 2,150.55
4. Step 4: Simplify right side
   3,426.91x = 10,170,457.67
5. Step 5: Solve for x
   x = 10,170,457.67/3,426.91
6. Step 6: Final answer
   x = 2,967.82