Finding the Fourth Proportional to 1,891.82, 2,834.59 and 658.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891.82 : 2,834.59 = 658.56 : x
2. Step 2: Convert to fraction form
   1,891.82/2,834.59 = 658.56/x
3. Step 3: Cross multiply
   1,891.82x = 2,834.59 × 658.56
4. Step 4: Simplify right side
   1,891.82x = 1,866,744.30
5. Step 5: Solve for x
   x = 1,866,744.30/1,891.82
6. Step 6: Final answer
   x = 986.75