Finding the Fourth Proportional to 2,150.02, 3,224.91 and 689.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.02 : 3,224.91 = 689.19 : x
2. Step 2: Convert to fraction form
   2,150.02/3,224.91 = 689.19/x
3. Step 3: Cross multiply
   2,150.02x = 3,224.91 × 689.19
4. Step 4: Simplify right side
   2,150.02x = 2,222,575.72
5. Step 5: Solve for x
   x = 2,222,575.72/2,150.02
6. Step 6: Final answer
   x = 1,033.75