Finding the Fourth Proportional to 1,126.29, 1,555.20 and 834.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,126.29 : 1,555.20 = 834.69 : x
2. Step 2: Convert to fraction form
   1,126.29/1,555.20 = 834.69/x
3. Step 3: Cross multiply
   1,126.29x = 1,555.20 × 834.69
4. Step 4: Simplify right side
   1,126.29x = 1,298,109.89
5. Step 5: Solve for x
   x = 1,298,109.89/1,126.29
6. Step 6: Final answer
   x = 1,152.55