Finding the Fourth Proportional to 2,646.56, 3,969.96 and 1,003.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,646.56 : 3,969.96 = 1,003.22 : x
2. Step 2: Convert to fraction form
   2,646.56/3,969.96 = 1,003.22/x
3. Step 3: Cross multiply
   2,646.56x = 3,969.96 × 1,003.22
4. Step 4: Simplify right side
   2,646.56x = 3,982,734.55
5. Step 5: Solve for x
   x = 3,982,734.55/2,646.56
6. Step 6: Final answer
   x = 1,504.87