Finding the Fourth Proportional to 1,389,729.48, 2,084,572.32 and 443,093.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,389,729.48 : 2,084,572.32 = 443,093.82 : x
2. Step 2: Convert to fraction form
   1,389,729.48/2,084,572.32 = 443,093.82/x
3. Step 3: Cross multiply
   1,389,729.48x = 2,084,572.32 × 443,093.82
4. Step 4: Simplify right side
   1,389,729.48x = 923,661,112,335.06
5. Step 5: Solve for x
   x = 923,661,112,335.06/1,389,729.48
6. Step 6: Final answer
   x = 664,633.75