Finding the Fourth Proportional to 1,424.98, 1,966.72 and 835.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424.98 : 1,966.72 = 835.86 : x
2. Step 2: Convert to fraction form
   1,424.98/1,966.72 = 835.86/x
3. Step 3: Cross multiply
   1,424.98x = 1,966.72 × 835.86
4. Step 4: Simplify right side
   1,424.98x = 1,643,902.58
5. Step 5: Solve for x
   x = 1,643,902.58/1,424.98
6. Step 6: Final answer
   x = 1,153.63