Finding the Fourth Proportional to 1,105.02, 1,659.82 and 1,068.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.02 : 1,659.82 = 1,068.13 : x
2. Step 2: Convert to fraction form
   1,105.02/1,659.82 = 1,068.13/x
3. Step 3: Cross multiply
   1,105.02x = 1,659.82 × 1,068.13
4. Step 4: Simplify right side
   1,105.02x = 1,772,903.54
5. Step 5: Solve for x
   x = 1,772,903.54/1,105.02
6. Step 6: Final answer
   x = 1,604.41