Finding the Fourth Proportional to 3,386.32, 5,078.72 and 2,136.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,386.32 : 5,078.72 = 2,136.32 : x
2. Step 2: Convert to fraction form
   3,386.32/5,078.72 = 2,136.32/x
3. Step 3: Cross multiply
   3,386.32x = 5,078.72 × 2,136.32
4. Step 4: Simplify right side
   3,386.32x = 10,849,771.11
5. Step 5: Solve for x
   x = 10,849,771.11/3,386.32
6. Step 6: Final answer
   x = 3,204.00