Finding the Fourth Proportional to 1,345,223.09, 1,856,435.71 and 756,533.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,223.09 : 1,856,435.71 = 756,533.78 : x
2. Step 2: Convert to fraction form
   1,345,223.09/1,856,435.71 = 756,533.78/x
3. Step 3: Cross multiply
   1,345,223.09x = 1,856,435.71 × 756,533.78
4. Step 4: Simplify right side
   1,345,223.09x = 1,404,456,315,731.11
5. Step 5: Solve for x
   x = 1,404,456,315,731.11/1,345,223.09
6. Step 6: Final answer
   x = 1,044,032.27