Finding the Fourth Proportional to 3,111,520.80, 4,665,414.24 and 1,216,004.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111,520.80 : 4,665,414.24 = 1,216,004.16 : x
2. Step 2: Convert to fraction form
   3,111,520.80/4,665,414.24 = 1,216,004.16/x
3. Step 3: Cross multiply
   3,111,520.80x = 4,665,414.24 × 1,216,004.16
4. Step 4: Simplify right side
   3,111,520.80x = 5,673,163,123,963.24
5. Step 5: Solve for x
   x = 5,673,163,123,963.24/3,111,520.80
6. Step 6: Final answer
   x = 1,823,276.62