Finding the Fourth Proportional to 2,150.01, 3,225.58 and 689.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.01 : 3,225.58 = 689.18 : x
2. Step 2: Convert to fraction form
   2,150.01/3,225.58 = 689.18/x
3. Step 3: Cross multiply
   2,150.01x = 3,225.58 × 689.18
4. Step 4: Simplify right side
   2,150.01x = 2,222,999.47
5. Step 5: Solve for x
   x = 2,222,999.47/2,150.01
6. Step 6: Final answer
   x = 1,033.95