Finding the Fourth Proportional to 1,456,229.75, 2,009,606.37 and 811,690.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456,229.75 : 2,009,606.37 = 811,690.80 : x
2. Step 2: Convert to fraction form
   1,456,229.75/2,009,606.37 = 811,690.80/x
3. Step 3: Cross multiply
   1,456,229.75x = 2,009,606.37 × 811,690.80
4. Step 4: Simplify right side
   1,456,229.75x = 1,631,179,002,150.40
5. Step 5: Solve for x
   x = 1,631,179,002,150.40/1,456,229.75
6. Step 6: Final answer
   x = 1,120,138.50