Finding the Fourth Proportional to 2,479.73, 3,719.78 and 1,018.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.73 : 3,719.78 = 1,018.89 : x
2. Step 2: Convert to fraction form
   2,479.73/3,719.78 = 1,018.89/x
3. Step 3: Cross multiply
   2,479.73x = 3,719.78 × 1,018.89
4. Step 4: Simplify right side
   2,479.73x = 3,790,041.55
5. Step 5: Solve for x
   x = 3,790,041.55/2,479.73
6. Step 6: Final answer
   x = 1,528.41