Finding the Fourth Proportional to 2,786.72, 4,182.12 and 2,245.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.72 : 4,182.12 = 2,245.43 : x
2. Step 2: Convert to fraction form
   2,786.72/4,182.12 = 2,245.43/x
3. Step 3: Cross multiply
   2,786.72x = 4,182.12 × 2,245.43
4. Step 4: Simplify right side
   2,786.72x = 9,390,668.17
5. Step 5: Solve for x
   x = 9,390,668.17/2,786.72
6. Step 6: Final answer
   x = 3,369.80