Finding the Fourth Proportional to 2,418.30, 3,627.63 and 1,119.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,418.30 : 3,627.63 = 1,119.78 : x
2. Step 2: Convert to fraction form
   2,418.30/3,627.63 = 1,119.78/x
3. Step 3: Cross multiply
   2,418.30x = 3,627.63 × 1,119.78
4. Step 4: Simplify right side
   2,418.30x = 4,062,147.52
5. Step 5: Solve for x
   x = 4,062,147.52/2,418.30
6. Step 6: Final answer
   x = 1,679.75