Finding the Fourth Proportional to 1,152,632.22, 1,729,172.43 and 442,608.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,632.22 : 1,729,172.43 = 442,608.06 : x
2. Step 2: Convert to fraction form
   1,152,632.22/1,729,172.43 = 442,608.06/x
3. Step 3: Cross multiply
   1,152,632.22x = 1,729,172.43 × 442,608.06
4. Step 4: Simplify right side
   1,152,632.22x = 765,345,654,647.79
5. Step 5: Solve for x
   x = 765,345,654,647.79/1,152,632.22
6. Step 6: Final answer
   x = 663,998.14