Finding the Fourth Proportional to 3,900.07, 5,846.86 and 2,726.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.07 : 5,846.86 = 2,726.72 : x
2. Step 2: Convert to fraction form
   3,900.07/5,846.86 = 2,726.72/x
3. Step 3: Cross multiply
   3,900.07x = 5,846.86 × 2,726.72
4. Step 4: Simplify right side
   3,900.07x = 15,942,724.27
5. Step 5: Solve for x
   x = 15,942,724.27/3,900.07
6. Step 6: Final answer
   x = 4,087.81