Finding the Fourth Proportional to 1,062,443.20, 1,466,128.80 and 578,997.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062,443.20 : 1,466,128.80 = 578,997.96 : x
2. Step 2: Convert to fraction form
   1,062,443.20/1,466,128.80 = 578,997.96/x
3. Step 3: Cross multiply
   1,062,443.20x = 1,466,128.80 × 578,997.96
4. Step 4: Simplify right side
   1,062,443.20x = 848,885,584,297.25
5. Step 5: Solve for x
   x = 848,885,584,297.25/1,062,443.20
6. Step 6: Final answer
   x = 798,993.85