Finding the Fourth Proportional to 4,196.84, 6,287.04 and 3,218.15

Step by Step Solution

1. Step 1: Write the proportion equation
   4,196.84 : 6,287.04 = 3,218.15 : x
2. Step 2: Convert to fraction form
   4,196.84/6,287.04 = 3,218.15/x
3. Step 3: Cross multiply
   4,196.84x = 6,287.04 × 3,218.15
4. Step 4: Simplify right side
   4,196.84x = 20,232,653.49
5. Step 5: Solve for x
   x = 20,232,653.49/4,196.84
6. Step 6: Final answer
   x = 4,820.93