Finding the Fourth Proportional to 1,329.50, 1,834.43 and 805.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,329.50 : 1,834.43 = 805.43 : x
2. Step 2: Convert to fraction form
   1,329.50/1,834.43 = 805.43/x
3. Step 3: Cross multiply
   1,329.50x = 1,834.43 × 805.43
4. Step 4: Simplify right side
   1,329.50x = 1,477,491.76
5. Step 5: Solve for x
   x = 1,477,491.76/1,329.50
6. Step 6: Final answer
   x = 1,111.32