Finding the Fourth Proportional to 2,223.28, 3,066.15 and 1,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,223.28 : 3,066.15 = 1,436.50 : x
2. Step 2: Convert to fraction form
   2,223.28/3,066.15 = 1,436.50/x
3. Step 3: Cross multiply
   2,223.28x = 3,066.15 × 1,436.50
4. Step 4: Simplify right side
   2,223.28x = 4,404,524.48
5. Step 5: Solve for x
   x = 4,404,524.48/2,223.28
6. Step 6: Final answer
   x = 1,981.09