Finding the Fourth Proportional to 2,045,406.15, 3,067,441.47 and 678,812.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045,406.15 : 3,067,441.47 = 678,812.76 : x
2. Step 2: Convert to fraction form
   2,045,406.15/3,067,441.47 = 678,812.76/x
3. Step 3: Cross multiply
   2,045,406.15x = 3,067,441.47 × 678,812.76
4. Step 4: Simplify right side
   2,045,406.15x = 2,082,218,410,389.16
5. Step 5: Solve for x
   x = 2,082,218,410,389.16/2,045,406.15
6. Step 6: Final answer
   x = 1,017,997.53