Finding the Fourth Proportional to 2,790.27, 4,182.71 and 1,329.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.27 : 4,182.71 = 1,329.03 : x
2. Step 2: Convert to fraction form
   2,790.27/4,182.71 = 1,329.03/x
3. Step 3: Cross multiply
   2,790.27x = 4,182.71 × 1,329.03
4. Step 4: Simplify right side
   2,790.27x = 5,558,940.43
5. Step 5: Solve for x
   x = 5,558,940.43/2,790.27
6. Step 6: Final answer
   x = 1,992.26