Finding the Fourth Proportional to 2,185,855.38, 3,016,474.56 and 1,218,986.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185,855.38 : 3,016,474.56 = 1,218,986.73 : x
2. Step 2: Convert to fraction form
   2,185,855.38/3,016,474.56 = 1,218,986.73/x
3. Step 3: Cross multiply
   2,185,855.38x = 3,016,474.56 × 1,218,986.73
4. Step 4: Simplify right side
   2,185,855.38x = 3,677,042,460,022.59
5. Step 5: Solve for x
   x = 3,677,042,460,022.59/2,185,855.38
6. Step 6: Final answer
   x = 1,682,198.42