Finding the Fourth Proportional to 2,522.43, 3,783.76 and 961.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.43 : 3,783.76 = 961.90 : x
2. Step 2: Convert to fraction form
   2,522.43/3,783.76 = 961.90/x
3. Step 3: Cross multiply
   2,522.43x = 3,783.76 × 961.90
4. Step 4: Simplify right side
   2,522.43x = 3,639,586.88
5. Step 5: Solve for x
   x = 3,639,586.88/2,522.43
6. Step 6: Final answer
   x = 1,442.89