Finding the Fourth Proportional to 1,424.59, 1,966.07 and 835.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424.59 : 1,966.07 = 835.31 : x
2. Step 2: Convert to fraction form
   1,424.59/1,966.07 = 835.31/x
3. Step 3: Cross multiply
   1,424.59x = 1,966.07 × 835.31
4. Step 4: Simplify right side
   1,424.59x = 1,642,284.94
5. Step 5: Solve for x
   x = 1,642,284.94/1,424.59
6. Step 6: Final answer
   x = 1,152.81