Finding the Fourth Proportional to 5,185.51, 7,155.98 and 2,827.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.51 : 7,155.98 = 2,827.60 : x
2. Step 2: Convert to fraction form
   5,185.51/7,155.98 = 2,827.60/x
3. Step 3: Cross multiply
   5,185.51x = 7,155.98 × 2,827.60
4. Step 4: Simplify right side
   5,185.51x = 20,234,234.91
5. Step 5: Solve for x
   x = 20,234,234.91/5,185.51
6. Step 6: Final answer
   x = 3,902.07