Finding the Fourth Proportional to 2,148.52, 3,223.98 and 849.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.52 : 3,223.98 = 849.88 : x
2. Step 2: Convert to fraction form
   2,148.52/3,223.98 = 849.88/x
3. Step 3: Cross multiply
   2,148.52x = 3,223.98 × 849.88
4. Step 4: Simplify right side
   2,148.52x = 2,739,996.12
5. Step 5: Solve for x
   x = 2,739,996.12/2,148.52
6. Step 6: Final answer
   x = 1,275.29