Finding the Fourth Proportional to 2,147.56, 3,222.42 and 849.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.56 : 3,222.42 = 849.94 : x
2. Step 2: Convert to fraction form
   2,147.56/3,222.42 = 849.94/x
3. Step 3: Cross multiply
   2,147.56x = 3,222.42 × 849.94
4. Step 4: Simplify right side
   2,147.56x = 2,738,863.65
5. Step 5: Solve for x
   x = 2,738,863.65/2,147.56
6. Step 6: Final answer
   x = 1,275.34