Finding the Fourth Proportional to 2,333.35, 3,500.21 and 689.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.35 : 3,500.21 = 689.86 : x
2. Step 2: Convert to fraction form
   2,333.35/3,500.21 = 689.86/x
3. Step 3: Cross multiply
   2,333.35x = 3,500.21 × 689.86
4. Step 4: Simplify right side
   2,333.35x = 2,414,654.87
5. Step 5: Solve for x
   x = 2,414,654.87/2,333.35
6. Step 6: Final answer
   x = 1,034.84