Finding the Fourth Proportional to 1,424.10, 1,964.80 and 834.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424.10 : 1,964.80 = 834.42 : x
2. Step 2: Convert to fraction form
   1,424.10/1,964.80 = 834.42/x
3. Step 3: Cross multiply
   1,424.10x = 1,964.80 × 834.42
4. Step 4: Simplify right side
   1,424.10x = 1,639,468.42
5. Step 5: Solve for x
   x = 1,639,468.42/1,424.10
6. Step 6: Final answer
   x = 1,151.23