Finding the Fourth Proportional to 2,047.22, 3,071.42 and 660.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.22 : 3,071.42 = 660.52 : x
2. Step 2: Convert to fraction form
   2,047.22/3,071.42 = 660.52/x
3. Step 3: Cross multiply
   2,047.22x = 3,071.42 × 660.52
4. Step 4: Simplify right side
   2,047.22x = 2,028,742.02
5. Step 5: Solve for x
   x = 2,028,742.02/2,047.22
6. Step 6: Final answer
   x = 990.98