Finding the Fourth Proportional to 1,042.94, 1,440.73 and 834.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.94 : 1,440.73 = 834.50 : x
2. Step 2: Convert to fraction form
   1,042.94/1,440.73 = 834.50/x
3. Step 3: Cross multiply
   1,042.94x = 1,440.73 × 834.50
4. Step 4: Simplify right side
   1,042.94x = 1,202,279.90
5. Step 5: Solve for x
   x = 1,202,279.90/1,042.94
6. Step 6: Final answer
   x = 1,152.79