Finding the Fourth Proportional to 2,478.92, 3,718.90 and 1,018.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,478.92 : 3,718.90 = 1,018.06 : x
2. Step 2: Convert to fraction form
   2,478.92/3,718.90 = 1,018.06/x
3. Step 3: Cross multiply
   2,478.92x = 3,718.90 × 1,018.06
4. Step 4: Simplify right side
   2,478.92x = 3,786,063.33
5. Step 5: Solve for x
   x = 3,786,063.33/2,478.92
6. Step 6: Final answer
   x = 1,527.30