Finding the Fourth Proportional to 3,223.62, 4,443.90 and 2,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,223.62 : 4,443.90 = 2,290.50 : x
2. Step 2: Convert to fraction form
   3,223.62/4,443.90 = 2,290.50/x
3. Step 3: Cross multiply
   3,223.62x = 4,443.90 × 2,290.50
4. Step 4: Simplify right side
   3,223.62x = 10,178,752.95
5. Step 5: Solve for x
   x = 10,178,752.95/3,223.62
6. Step 6: Final answer
   x = 3,157.55