Finding the Fourth Proportional to 2,019.96, 3,031.11 and 849.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.96 : 3,031.11 = 849.88 : x
2. Step 2: Convert to fraction form
   2,019.96/3,031.11 = 849.88/x
3. Step 3: Cross multiply
   2,019.96x = 3,031.11 × 849.88
4. Step 4: Simplify right side
   2,019.96x = 2,576,064.61
5. Step 5: Solve for x
   x = 2,576,064.61/2,019.96
6. Step 6: Final answer
   x = 1,275.30