Finding the Fourth Proportional to 5,196.38, 7,170.90 and 2,838.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.38 : 7,170.90 = 2,838.52 : x
2. Step 2: Convert to fraction form
   5,196.38/7,170.90 = 2,838.52/x
3. Step 3: Cross multiply
   5,196.38x = 7,170.90 × 2,838.52
4. Step 4: Simplify right side
   5,196.38x = 20,354,743.07
5. Step 5: Solve for x
   x = 20,354,743.07/5,196.38
6. Step 6: Final answer
   x = 3,917.10