Finding the Fourth Proportional to 1,648,940.78, 2,275,538.49 and 913,942.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,648,940.78 : 2,275,538.49 = 913,942.46 : x
2. Step 2: Convert to fraction form
   1,648,940.78/2,275,538.49 = 913,942.46/x
3. Step 3: Cross multiply
   1,648,940.78x = 2,275,538.49 × 913,942.46
4. Step 4: Simplify right side
   1,648,940.78x = 2,079,711,233,997.59
5. Step 5: Solve for x
   x = 2,079,711,233,997.59/1,648,940.78
6. Step 6: Final answer
   x = 1,261,240.71