Finding the Fourth Proportional to 1,105.31, 1,650.05 and 1,066.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.31 : 1,650.05 = 1,066.84 : x
2. Step 2: Convert to fraction form
   1,105.31/1,650.05 = 1,066.84/x
3. Step 3: Cross multiply
   1,105.31x = 1,650.05 × 1,066.84
4. Step 4: Simplify right side
   1,105.31x = 1,760,339.34
5. Step 5: Solve for x
   x = 1,760,339.34/1,105.31
6. Step 6: Final answer
   x = 1,592.62