Finding the Fourth Proportional to 5,196.75, 7,171.48 and 2,838.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.75 : 7,171.48 = 2,838.89 : x
2. Step 2: Convert to fraction form
   5,196.75/7,171.48 = 2,838.89/x
3. Step 3: Cross multiply
   5,196.75x = 7,171.48 × 2,838.89
4. Step 4: Simplify right side
   5,196.75x = 20,359,042.86
5. Step 5: Solve for x
   x = 20,359,042.86/5,196.75
6. Step 6: Final answer
   x = 3,917.65