Finding the Fourth Proportional to 1,311,963.89, 1,968,222 and 743,617.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311,963.89 : 1,968,222 = 743,617.31 : x
2. Step 2: Convert to fraction form
   1,311,963.89/1,968,222 = 743,617.31/x
3. Step 3: Cross multiply
   1,311,963.89x = 1,968,222 × 743,617.31
4. Step 4: Simplify right side
   1,311,963.89x = 1,463,603,949,122.82
5. Step 5: Solve for x
   x = 1,463,603,949,122.82/1,311,963.89
6. Step 6: Final answer
   x = 1,115,582.49