Finding the Fourth Proportional to 5,196.30, 7,170.94 and 2,838.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.30 : 7,170.94 = 2,838.48 : x
2. Step 2: Convert to fraction form
   5,196.30/7,170.94 = 2,838.48/x
3. Step 3: Cross multiply
   5,196.30x = 7,170.94 × 2,838.48
4. Step 4: Simplify right side
   5,196.30x = 20,354,569.77
5. Step 5: Solve for x
   x = 20,354,569.77/5,196.30
6. Step 6: Final answer
   x = 3,917.13