Finding the Fourth Proportional to 2,709.05, 4,062.15 and 1,322.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709.05 : 4,062.15 = 1,322.63 : x
2. Step 2: Convert to fraction form
   2,709.05/4,062.15 = 1,322.63/x
3. Step 3: Cross multiply
   2,709.05x = 4,062.15 × 1,322.63
4. Step 4: Simplify right side
   2,709.05x = 5,372,716.38
5. Step 5: Solve for x
   x = 5,372,716.38/2,709.05
6. Step 6: Final answer
   x = 1,983.25