Finding the Fourth Proportional to 2,392.69, 3,589.46 and 986.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,392.69 : 3,589.46 = 986.32 : x
2. Step 2: Convert to fraction form
   2,392.69/3,589.46 = 986.32/x
3. Step 3: Cross multiply
   2,392.69x = 3,589.46 × 986.32
4. Step 4: Simplify right side
   2,392.69x = 3,540,360.67
5. Step 5: Solve for x
   x = 3,540,360.67/2,392.69
6. Step 6: Final answer
   x = 1,479.66