Finding the Fourth Proportional to 2,909.38, 4,364.52 and 961.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,909.38 : 4,364.52 = 961.42 : x
2. Step 2: Convert to fraction form
   2,909.38/4,364.52 = 961.42/x
3. Step 3: Cross multiply
   2,909.38x = 4,364.52 × 961.42
4. Step 4: Simplify right side
   2,909.38x = 4,196,136.82
5. Step 5: Solve for x
   x = 4,196,136.82/2,909.38
6. Step 6: Final answer
   x = 1,442.28