Finding the Fourth Proportional to 5,198.75, 7,796.52 and 1,912.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,198.75 : 7,796.52 = 1,912.10 : x
2. Step 2: Convert to fraction form
   5,198.75/7,796.52 = 1,912.10/x
3. Step 3: Cross multiply
   5,198.75x = 7,796.52 × 1,912.10
4. Step 4: Simplify right side
   5,198.75x = 14,907,725.89
5. Step 5: Solve for x
   x = 14,907,725.89/5,198.75
6. Step 6: Final answer
   x = 2,867.56