Finding the Fourth Proportional to 2,054.49, 3,078.15 and 1,618.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.49 : 3,078.15 = 1,618.53 : x
2. Step 2: Convert to fraction form
   2,054.49/3,078.15 = 1,618.53/x
3. Step 3: Cross multiply
   2,054.49x = 3,078.15 × 1,618.53
4. Step 4: Simplify right side
   2,054.49x = 4,982,078.12
5. Step 5: Solve for x
   x = 4,982,078.12/2,054.49
6. Step 6: Final answer
   x = 2,424.97