Finding the Fourth Proportional to 2,973.94, 4,105.96 and 1,912.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,973.94 : 4,105.96 = 1,912.18 : x
2. Step 2: Convert to fraction form
   2,973.94/4,105.96 = 1,912.18/x
3. Step 3: Cross multiply
   2,973.94x = 4,105.96 × 1,912.18
4. Step 4: Simplify right side
   2,973.94x = 7,851,334.59
5. Step 5: Solve for x
   x = 7,851,334.59/2,973.94
6. Step 6: Final answer
   x = 2,640.04