Finding the Fourth Proportional to 1,153.16, 1,728.52 and 574.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.16 : 1,728.52 = 574.82 : x
2. Step 2: Convert to fraction form
   1,153.16/1,728.52 = 574.82/x
3. Step 3: Cross multiply
   1,153.16x = 1,728.52 × 574.82
4. Step 4: Simplify right side
   1,153.16x = 993,576.35
5. Step 5: Solve for x
   x = 993,576.35/1,153.16
6. Step 6: Final answer
   x = 861.62