Finding the Fourth Proportional to 4,095.28, 6,142.56 and 1,786.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,095.28 : 6,142.56 = 1,786.72 : x
2. Step 2: Convert to fraction form
   4,095.28/6,142.56 = 1,786.72/x
3. Step 3: Cross multiply
   4,095.28x = 6,142.56 × 1,786.72
4. Step 4: Simplify right side
   4,095.28x = 10,975,034.80
5. Step 5: Solve for x
   x = 10,975,034.80/4,095.28
6. Step 6: Final answer
   x = 2,679.92