Finding the Fourth Proportional to 1,174.55, 1,620.83 and 650.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.55 : 1,620.83 = 650.57 : x
2. Step 2: Convert to fraction form
   1,174.55/1,620.83 = 650.57/x
3. Step 3: Cross multiply
   1,174.55x = 1,620.83 × 650.57
4. Step 4: Simplify right side
   1,174.55x = 1,054,456.90
5. Step 5: Solve for x
   x = 1,054,456.90/1,174.55
6. Step 6: Final answer
   x = 897.76