Finding the Fourth Proportional to 2,579.98, 3,866.79 and 1,018.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579.98 : 3,866.79 = 1,018.41 : x
2. Step 2: Convert to fraction form
   2,579.98/3,866.79 = 1,018.41/x
3. Step 3: Cross multiply
   2,579.98x = 3,866.79 × 1,018.41
4. Step 4: Simplify right side
   2,579.98x = 3,937,977.60
5. Step 5: Solve for x
   x = 3,937,977.60/2,579.98
6. Step 6: Final answer
   x = 1,526.36