Finding the Fourth Proportional to 1,174.79, 1,621.26 and 650.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.79 : 1,621.26 = 650.72 : x
2. Step 2: Convert to fraction form
   1,174.79/1,621.26 = 650.72/x
3. Step 3: Cross multiply
   1,174.79x = 1,621.26 × 650.72
4. Step 4: Simplify right side
   1,174.79x = 1,054,978.20
5. Step 5: Solve for x
   x = 1,054,978.20/1,174.79
6. Step 6: Final answer
   x = 898.02