Finding the Fourth Proportional to 2,974.86, 4,103.51 and 1,912.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,974.86 : 4,103.51 = 1,912.27 : x
2. Step 2: Convert to fraction form
   2,974.86/4,103.51 = 1,912.27/x
3. Step 3: Cross multiply
   2,974.86x = 4,103.51 × 1,912.27
4. Step 4: Simplify right side
   2,974.86x = 7,847,019.07
5. Step 5: Solve for x
   x = 7,847,019.07/2,974.86
6. Step 6: Final answer
   x = 2,637.78