Finding the Fourth Proportional to 2,718,648.94, 4,077,710.16 and 825,406.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,718,648.94 : 4,077,710.16 = 825,406.78 : x
2. Step 2: Convert to fraction form
   2,718,648.94/4,077,710.16 = 825,406.78/x
3. Step 3: Cross multiply
   2,718,648.94x = 4,077,710.16 × 825,406.78
4. Step 4: Simplify right side
   2,718,648.94x = 3,365,769,612,938.89
5. Step 5: Solve for x
   x = 3,365,769,612,938.89/2,718,648.94
6. Step 6: Final answer
   x = 1,238,030.24