Finding the Fourth Proportional to 3,967.75, 5,475.50 and 2,199.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,967.75 : 5,475.50 = 2,199.62 : x
2. Step 2: Convert to fraction form
   3,967.75/5,475.50 = 2,199.62/x
3. Step 3: Cross multiply
   3,967.75x = 5,475.50 × 2,199.62
4. Step 4: Simplify right side
   3,967.75x = 12,044,019.31
5. Step 5: Solve for x
   x = 12,044,019.31/3,967.75
6. Step 6: Final answer
   x = 3,035.48