Finding the Fourth Proportional to 2,054.48, 3,078.14 and 1,618.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.48 : 3,078.14 = 1,618.56 : x
2. Step 2: Convert to fraction form
   2,054.48/3,078.14 = 1,618.56/x
3. Step 3: Cross multiply
   2,054.48x = 3,078.14 × 1,618.56
4. Step 4: Simplify right side
   2,054.48x = 4,982,146.19
5. Step 5: Solve for x
   x = 4,982,146.19/2,054.48
6. Step 6: Final answer
   x = 2,425.02