Finding the Fourth Proportional to 2,379.62, 3,568.86 and 918.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.62 : 3,568.86 = 918.44 : x
2. Step 2: Convert to fraction form
   2,379.62/3,568.86 = 918.44/x
3. Step 3: Cross multiply
   2,379.62x = 3,568.86 × 918.44
4. Step 4: Simplify right side
   2,379.62x = 3,277,783.78
5. Step 5: Solve for x
   x = 3,277,783.78/2,379.62
6. Step 6: Final answer
   x = 1,377.44