Finding the Fourth Proportional to 2,689.91, 4,034.83 and 841.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.91 : 4,034.83 = 841.04 : x
2. Step 2: Convert to fraction form
   2,689.91/4,034.83 = 841.04/x
3. Step 3: Cross multiply
   2,689.91x = 4,034.83 × 841.04
4. Step 4: Simplify right side
   2,689.91x = 3,393,429.04
5. Step 5: Solve for x
   x = 3,393,429.04/2,689.91
6. Step 6: Final answer
   x = 1,261.54