Finding the Fourth Proportional to 2,081.90, 3,122.16 and 694.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.90 : 3,122.16 = 694.82 : x
2. Step 2: Convert to fraction form
   2,081.90/3,122.16 = 694.82/x
3. Step 3: Cross multiply
   2,081.90x = 3,122.16 × 694.82
4. Step 4: Simplify right side
   2,081.90x = 2,169,339.21
5. Step 5: Solve for x
   x = 2,169,339.21/2,081.90
6. Step 6: Final answer
   x = 1,042.00