Finding the Fourth Proportional to 1,394.02, 1,923.90 and 834.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.02 : 1,923.90 = 834.43 : x
2. Step 2: Convert to fraction form
   1,394.02/1,923.90 = 834.43/x
3. Step 3: Cross multiply
   1,394.02x = 1,923.90 × 834.43
4. Step 4: Simplify right side
   1,394.02x = 1,605,359.88
5. Step 5: Solve for x
   x = 1,605,359.88/1,394.02
6. Step 6: Final answer
   x = 1,151.60