Finding the Fourth Proportional to 2,148.41, 3,222.81 and 849.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.41 : 3,222.81 = 849.57 : x
2. Step 2: Convert to fraction form
   2,148.41/3,222.81 = 849.57/x
3. Step 3: Cross multiply
   2,148.41x = 3,222.81 × 849.57
4. Step 4: Simplify right side
   2,148.41x = 2,738,002.69
5. Step 5: Solve for x
   x = 2,738,002.69/2,148.41
6. Step 6: Final answer
   x = 1,274.44