Finding the Fourth Proportional to 3,430.62, 5,144.82 and 964.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,430.62 : 5,144.82 = 964.86 : x
2. Step 2: Convert to fraction form
   3,430.62/5,144.82 = 964.86/x
3. Step 3: Cross multiply
   3,430.62x = 5,144.82 × 964.86
4. Step 4: Simplify right side
   3,430.62x = 4,964,031.03
5. Step 5: Solve for x
   x = 4,964,031.03/3,430.62
6. Step 6: Final answer
   x = 1,446.98