Finding the Fourth Proportional to 2,579.37, 3,866.41 and 1,018.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,579.37 : 3,866.41 = 1,018.74 : x
2. Step 2: Convert to fraction form
   2,579.37/3,866.41 = 1,018.74/x
3. Step 3: Cross multiply
   2,579.37x = 3,866.41 × 1,018.74
4. Step 4: Simplify right side
   2,579.37x = 3,938,876.19
5. Step 5: Solve for x
   x = 3,938,876.19/2,579.37
6. Step 6: Final answer
   x = 1,527.07