Finding the Fourth Proportional to 2,726.56, 3,762.72 and 1,678.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726.56 : 3,762.72 = 1,678.56 : x
2. Step 2: Convert to fraction form
   2,726.56/3,762.72 = 1,678.56/x
3. Step 3: Cross multiply
   2,726.56x = 3,762.72 × 1,678.56
4. Step 4: Simplify right side
   2,726.56x = 6,315,951.28
5. Step 5: Solve for x
   x = 6,315,951.28/2,726.56
6. Step 6: Final answer
   x = 2,316.45