Finding the Fourth Proportional to 2,548.20, 3,819.78 and 1,251.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,548.20 : 3,819.78 = 1,251.48 : x
2. Step 2: Convert to fraction form
   2,548.20/3,819.78 = 1,251.48/x
3. Step 3: Cross multiply
   2,548.20x = 3,819.78 × 1,251.48
4. Step 4: Simplify right side
   2,548.20x = 4,780,378.27
5. Step 5: Solve for x
   x = 4,780,378.27/2,548.20
6. Step 6: Final answer
   x = 1,875.98