Finding the Fourth Proportional to 1,105.74, 1,659.69 and 529.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.74 : 1,659.69 = 529.02 : x
2. Step 2: Convert to fraction form
   1,105.74/1,659.69 = 529.02/x
3. Step 3: Cross multiply
   1,105.74x = 1,659.69 × 529.02
4. Step 4: Simplify right side
   1,105.74x = 878,009.20
5. Step 5: Solve for x
   x = 878,009.20/1,105.74
6. Step 6: Final answer
   x = 794.05