Finding the Fourth Proportional to 1,789.92, 2,685.89 and 694.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.92 : 2,685.89 = 694.35 : x
2. Step 2: Convert to fraction form
   1,789.92/2,685.89 = 694.35/x
3. Step 3: Cross multiply
   1,789.92x = 2,685.89 × 694.35
4. Step 4: Simplify right side
   1,789.92x = 1,864,944.25
5. Step 5: Solve for x
   x = 1,864,944.25/1,789.92
6. Step 6: Final answer
   x = 1,041.91