Finding the Fourth Proportional to 1,424.57, 1,965.35 and 834.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424.57 : 1,965.35 = 834.89 : x
2. Step 2: Convert to fraction form
   1,424.57/1,965.35 = 834.89/x
3. Step 3: Cross multiply
   1,424.57x = 1,965.35 × 834.89
4. Step 4: Simplify right side
   1,424.57x = 1,640,843.32
5. Step 5: Solve for x
   x = 1,640,843.32/1,424.57
6. Step 6: Final answer
   x = 1,151.82