Finding the Fourth Proportional to 3,452.96, 5,179.38 and 855.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,452.96 : 5,179.38 = 855.89 : x
2. Step 2: Convert to fraction form
   3,452.96/5,179.38 = 855.89/x
3. Step 3: Cross multiply
   3,452.96x = 5,179.38 × 855.89
4. Step 4: Simplify right side
   3,452.96x = 4,432,979.55
5. Step 5: Solve for x
   x = 4,432,979.55/3,452.96
6. Step 6: Final answer
   x = 1,283.82