Finding the Fourth Proportional to 1,922.40, 2,882.89 and 690.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,922.40 : 2,882.89 = 690.83 : x
2. Step 2: Convert to fraction form
   1,922.40/2,882.89 = 690.83/x
3. Step 3: Cross multiply
   1,922.40x = 2,882.89 × 690.83
4. Step 4: Simplify right side
   1,922.40x = 1,991,584.16
5. Step 5: Solve for x
   x = 1,991,584.16/1,922.40
6. Step 6: Final answer
   x = 1,035.99