Finding the Fourth Proportional to 4,156.91, 5,727.83 and 2,828.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,156.91 : 5,727.83 = 2,828.30 : x
2. Step 2: Convert to fraction form
   4,156.91/5,727.83 = 2,828.30/x
3. Step 3: Cross multiply
   4,156.91x = 5,727.83 × 2,828.30
4. Step 4: Simplify right side
   4,156.91x = 16,199,978.81
5. Step 5: Solve for x
   x = 16,199,978.81/4,156.91
6. Step 6: Final answer
   x = 3,897.13