Finding the Fourth Proportional to 1,411.38, 2,117.67 and 834.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.38 : 2,117.67 = 834.25 : x
2. Step 2: Convert to fraction form
   1,411.38/2,117.67 = 834.25/x
3. Step 3: Cross multiply
   1,411.38x = 2,117.67 × 834.25
4. Step 4: Simplify right side
   1,411.38x = 1,766,666.20
5. Step 5: Solve for x
   x = 1,766,666.20/1,411.38
6. Step 6: Final answer
   x = 1,251.73