Finding the Fourth Proportional to 5,185.94, 7,156.69 and 2,828.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.94 : 7,156.69 = 2,828.16 : x
2. Step 2: Convert to fraction form
   5,185.94/7,156.69 = 2,828.16/x
3. Step 3: Cross multiply
   5,185.94x = 7,156.69 × 2,828.16
4. Step 4: Simplify right side
   5,185.94x = 20,240,257.32
5. Step 5: Solve for x
   x = 20,240,257.32/5,185.94
6. Step 6: Final answer
   x = 3,902.91