Finding the Fourth Proportional to 2,810,682, 4,216,139.64 and 816,138

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810,682 : 4,216,139.64 = 816,138 : x
2. Step 2: Convert to fraction form
   2,810,682/4,216,139.64 = 816,138/x
3. Step 3: Cross multiply
   2,810,682x = 4,216,139.64 × 816,138
4. Step 4: Simplify right side
   2,810,682x = 3,440,951,773,510.32
5. Step 5: Solve for x
   x = 3,440,951,773,510.32/2,810,682
6. Step 6: Final answer
   x = 1,224,240.87