Finding the Fourth Proportional to 2,908.50, 4,013.81 and 1,790.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,908.50 : 4,013.81 = 1,790.09 : x
2. Step 2: Convert to fraction form
   2,908.50/4,013.81 = 1,790.09/x
3. Step 3: Cross multiply
   2,908.50x = 4,013.81 × 1,790.09
4. Step 4: Simplify right side
   2,908.50x = 7,185,081.14
5. Step 5: Solve for x
   x = 7,185,081.14/2,908.50
6. Step 6: Final answer
   x = 2,470.37