Finding the Fourth Proportional to 3,067.56, 4,599.98 and 987.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,067.56 : 4,599.98 = 987.18 : x
2. Step 2: Convert to fraction form
   3,067.56/4,599.98 = 987.18/x
3. Step 3: Cross multiply
   3,067.56x = 4,599.98 × 987.18
4. Step 4: Simplify right side
   3,067.56x = 4,541,003.32
5. Step 5: Solve for x
   x = 4,541,003.32/3,067.56
6. Step 6: Final answer
   x = 1,480.33