Finding the Fourth Proportional to 2,479.61, 3,720.33 and 1,018.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.61 : 3,720.33 = 1,018.88 : x
2. Step 2: Convert to fraction form
   2,479.61/3,720.33 = 1,018.88/x
3. Step 3: Cross multiply
   2,479.61x = 3,720.33 × 1,018.88
4. Step 4: Simplify right side
   2,479.61x = 3,790,565.18
5. Step 5: Solve for x
   x = 3,790,565.18/2,479.61
6. Step 6: Final answer
   x = 1,528.69