Finding the Fourth Proportional to 1,761.53, 2,638.69 and 834.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.53 : 2,638.69 = 834.27 : x
2. Step 2: Convert to fraction form
   1,761.53/2,638.69 = 834.27/x
3. Step 3: Cross multiply
   1,761.53x = 2,638.69 × 834.27
4. Step 4: Simplify right side
   1,761.53x = 2,201,372.62
5. Step 5: Solve for x
   x = 2,201,372.62/1,761.53
6. Step 6: Final answer
   x = 1,249.70