Finding the Fourth Proportional to 2,147.43, 3,222.23 and 849.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.43 : 3,222.23 = 849.99 : x
2. Step 2: Convert to fraction form
   2,147.43/3,222.23 = 849.99/x
3. Step 3: Cross multiply
   2,147.43x = 3,222.23 × 849.99
4. Step 4: Simplify right side
   2,147.43x = 2,738,859.03
5. Step 5: Solve for x
   x = 2,738,859.03/2,147.43
6. Step 6: Final answer
   x = 1,275.41