Finding the Fourth Proportional to 2,456.58, 3,685.50 and 2,018.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.58 : 3,685.50 = 2,018.55 : x
2. Step 2: Convert to fraction form
   2,456.58/3,685.50 = 2,018.55/x
3. Step 3: Cross multiply
   2,456.58x = 3,685.50 × 2,018.55
4. Step 4: Simplify right side
   2,456.58x = 7,439,366.03
5. Step 5: Solve for x
   x = 7,439,366.03/2,456.58
6. Step 6: Final answer
   x = 3,028.34