Finding the Fourth Proportional to 2,150.35, 3,225.83 and 689.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.35 : 3,225.83 = 689.38 : x
2. Step 2: Convert to fraction form
   2,150.35/3,225.83 = 689.38/x
3. Step 3: Cross multiply
   2,150.35x = 3,225.83 × 689.38
4. Step 4: Simplify right side
   2,150.35x = 2,223,811.17
5. Step 5: Solve for x
   x = 2,223,811.17/2,150.35
6. Step 6: Final answer
   x = 1,034.16