Finding the Fourth Proportional to 2,019.87, 3,028.19 and 1,248.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.87 : 3,028.19 = 1,248.75 : x
2. Step 2: Convert to fraction form
   2,019.87/3,028.19 = 1,248.75/x
3. Step 3: Cross multiply
   2,019.87x = 3,028.19 × 1,248.75
4. Step 4: Simplify right side
   2,019.87x = 3,781,446.02
5. Step 5: Solve for x
   x = 3,781,446.02/2,019.87
6. Step 6: Final answer
   x = 1,872.12