Finding the Fourth Proportional to 1,016.45, 1,401.57 and 834.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.45 : 1,401.57 = 834.00 : x
2. Step 2: Convert to fraction form
   1,016.45/1,401.57 = 834.00/x
3. Step 3: Cross multiply
   1,016.45x = 1,401.57 × 834.00
4. Step 4: Simplify right side
   1,016.45x = 1,168,912.11
5. Step 5: Solve for x
   x = 1,168,912.11/1,016.45
6. Step 6: Final answer
   x = 1,149.99