Finding the Fourth Proportional to 2,646.68, 3,969.94 and 1,003.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,646.68 : 3,969.94 = 1,003.48 : x
2. Step 2: Convert to fraction form
   2,646.68/3,969.94 = 1,003.48/x
3. Step 3: Cross multiply
   2,646.68x = 3,969.94 × 1,003.48
4. Step 4: Simplify right side
   2,646.68x = 3,983,755.39
5. Step 5: Solve for x
   x = 3,983,755.39/2,646.68
6. Step 6: Final answer
   x = 1,505.19