Finding the Fourth Proportional to 2,066.20, 3,099.60 and 970.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.20 : 3,099.60 = 970.60 : x
2. Step 2: Convert to fraction form
   2,066.20/3,099.60 = 970.60/x
3. Step 3: Cross multiply
   2,066.20x = 3,099.60 × 970.60
4. Step 4: Simplify right side
   2,066.20x = 3,008,471.76
5. Step 5: Solve for x
   x = 3,008,471.76/2,066.20
6. Step 6: Final answer
   x = 1,456.04