Finding the Fourth Proportional to 1,062,430.54, 1,466,111.37 and 578,985.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062,430.54 : 1,466,111.37 = 578,985.30 : x
2. Step 2: Convert to fraction form
   1,062,430.54/1,466,111.37 = 578,985.30/x
3. Step 3: Cross multiply
   1,062,430.54x = 1,466,111.37 × 578,985.30
4. Step 4: Simplify right side
   1,062,430.54x = 848,856,936,890.78
5. Step 5: Solve for x
   x = 848,856,936,890.78/1,062,430.54
6. Step 6: Final answer
   x = 798,976.41