Finding the Fourth Proportional to 2,798.17, 4,196.79 and 849.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.17 : 4,196.79 = 849.91 : x
2. Step 2: Convert to fraction form
   2,798.17/4,196.79 = 849.91/x
3. Step 3: Cross multiply
   2,798.17x = 4,196.79 × 849.91
4. Step 4: Simplify right side
   2,798.17x = 3,566,893.79
5. Step 5: Solve for x
   x = 3,566,893.79/2,798.17
6. Step 6: Final answer
   x = 1,274.72