Finding the Fourth Proportional to 2,066.29, 3,100.06 and 660.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.29 : 3,100.06 = 660.67 : x
2. Step 2: Convert to fraction form
   2,066.29/3,100.06 = 660.67/x
3. Step 3: Cross multiply
   2,066.29x = 3,100.06 × 660.67
4. Step 4: Simplify right side
   2,066.29x = 2,048,116.64
5. Step 5: Solve for x
   x = 2,048,116.64/2,066.29
6. Step 6: Final answer
   x = 991.20