Finding the Fourth Proportional to 2,418.93, 3,627.63 and 1,248.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418.93 : 3,627.63 = 1,248.78 : x
2. Step 2: Convert to fraction form
   2,418.93/3,627.63 = 1,248.78/x
3. Step 3: Cross multiply
   2,418.93x = 3,627.63 × 1,248.78
4. Step 4: Simplify right side
   2,418.93x = 4,530,111.79
5. Step 5: Solve for x
   x = 4,530,111.79/2,418.93
6. Step 6: Final answer
   x = 1,872.78