Finding the Fourth Proportional to 1,105.79, 1,659.20 and 694.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.79 : 1,659.20 = 694.82 : x
2. Step 2: Convert to fraction form
   1,105.79/1,659.20 = 694.82/x
3. Step 3: Cross multiply
   1,105.79x = 1,659.20 × 694.82
4. Step 4: Simplify right side
   1,105.79x = 1,152,846.02
5. Step 5: Solve for x
   x = 1,152,846.02/1,105.79
6. Step 6: Final answer
   x = 1,042.55