Finding the Fourth Proportional to 1,173.98, 1,620.17 and 650.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173.98 : 1,620.17 = 650.02 : x
2. Step 2: Convert to fraction form
   1,173.98/1,620.17 = 650.02/x
3. Step 3: Cross multiply
   1,173.98x = 1,620.17 × 650.02
4. Step 4: Simplify right side
   1,173.98x = 1,053,140.48
5. Step 5: Solve for x
   x = 1,053,140.48/1,173.98
6. Step 6: Final answer
   x = 897.07