Finding the Fourth Proportional to 2,333.33, 3,499.65 and 689.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.33 : 3,499.65 = 689.79 : x
2. Step 2: Convert to fraction form
   2,333.33/3,499.65 = 689.79/x
3. Step 3: Cross multiply
   2,333.33x = 3,499.65 × 689.79
4. Step 4: Simplify right side
   2,333.33x = 2,414,023.57
5. Step 5: Solve for x
   x = 2,414,023.57/2,333.33
6. Step 6: Final answer
   x = 1,034.59