Finding the Fourth Proportional to 2,974.73, 4,105.89 and 1,913.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,974.73 : 4,105.89 = 1,913.22 : x
2. Step 2: Convert to fraction form
   2,974.73/4,105.89 = 1,913.22/x
3. Step 3: Cross multiply
   2,974.73x = 4,105.89 × 1,913.22
4. Step 4: Simplify right side
   2,974.73x = 7,855,470.87
5. Step 5: Solve for x
   x = 7,855,470.87/2,974.73
6. Step 6: Final answer
   x = 2,640.74