Finding the Fourth Proportional to 3,586.88, 5,379.71 and 954.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,586.88 : 5,379.71 = 954.42 : x
2. Step 2: Convert to fraction form
   3,586.88/5,379.71 = 954.42/x
3. Step 3: Cross multiply
   3,586.88x = 5,379.71 × 954.42
4. Step 4: Simplify right side
   3,586.88x = 5,134,498.05
5. Step 5: Solve for x
   x = 5,134,498.05/3,586.88
6. Step 6: Final answer
   x = 1,431.47