Finding the Fourth Proportional to 1,017.34, 1,523.72 and 834.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.34 : 1,523.72 = 834.38 : x
2. Step 2: Convert to fraction form
   1,017.34/1,523.72 = 834.38/x
3. Step 3: Cross multiply
   1,017.34x = 1,523.72 × 834.38
4. Step 4: Simplify right side
   1,017.34x = 1,271,361.49
5. Step 5: Solve for x
   x = 1,271,361.49/1,017.34
6. Step 6: Final answer
   x = 1,249.69