Finding the Fourth Proportional to 3,213.82, 4,435.20 and 2,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,213.82 : 4,435.20 = 2,426.50 : x
2. Step 2: Convert to fraction form
   3,213.82/4,435.20 = 2,426.50/x
3. Step 3: Cross multiply
   3,213.82x = 4,435.20 × 2,426.50
4. Step 4: Simplify right side
   3,213.82x = 10,762,012.80
5. Step 5: Solve for x
   x = 10,762,012.80/3,213.82
6. Step 6: Final answer
   x = 3,348.67