Finding the Fourth Proportional to 3,968.32, 5,476.17 and 2,199.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968.32 : 5,476.17 = 2,199.89 : x
2. Step 2: Convert to fraction form
   3,968.32/5,476.17 = 2,199.89/x
3. Step 3: Cross multiply
   3,968.32x = 5,476.17 × 2,199.89
4. Step 4: Simplify right side
   3,968.32x = 12,046,971.62
5. Step 5: Solve for x
   x = 12,046,971.62/3,968.32
6. Step 6: Final answer
   x = 3,035.79