Finding the Fourth Proportional to 1,423.34, 1,963.73 and 833.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.34 : 1,963.73 = 833.45 : x
2. Step 2: Convert to fraction form
   1,423.34/1,963.73 = 833.45/x
3. Step 3: Cross multiply
   1,423.34x = 1,963.73 × 833.45
4. Step 4: Simplify right side
   1,423.34x = 1,636,677.76
5. Step 5: Solve for x
   x = 1,636,677.76/1,423.34
6. Step 6: Final answer
   x = 1,149.89