Finding the Fourth Proportional to 1,152,748.89, 1,729,206.27 and 442,776.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,748.89 : 1,729,206.27 = 442,776.96 : x
2. Step 2: Convert to fraction form
   1,152,748.89/1,729,206.27 = 442,776.96/x
3. Step 3: Cross multiply
   1,152,748.89x = 1,729,206.27 × 442,776.96
4. Step 4: Simplify right side
   1,152,748.89x = 765,652,695,443.54
5. Step 5: Solve for x
   x = 765,652,695,443.54/1,152,748.89
6. Step 6: Final answer
   x = 664,197.30