Finding the Fourth Proportional to 1,394.38, 1,923.86 and 834.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.38 : 1,923.86 = 834.62 : x
2. Step 2: Convert to fraction form
   1,394.38/1,923.86 = 834.62/x
3. Step 3: Cross multiply
   1,394.38x = 1,923.86 × 834.62
4. Step 4: Simplify right side
   1,394.38x = 1,605,692.03
5. Step 5: Solve for x
   x = 1,605,692.03/1,394.38
6. Step 6: Final answer
   x = 1,151.55