Finding the Fourth Proportional to 2,443,683.69, 3,665,406.31 and 906,978.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443,683.69 : 3,665,406.31 = 906,978.12 : x
2. Step 2: Convert to fraction form
   2,443,683.69/3,665,406.31 = 906,978.12/x
3. Step 3: Cross multiply
   2,443,683.69x = 3,665,406.31 × 906,978.12
4. Step 4: Simplify right side
   2,443,683.69x = 3,324,443,324,079.94
5. Step 5: Solve for x
   x = 3,324,443,324,079.94/2,443,683.69
6. Step 6: Final answer
   x = 1,360,422.93