Finding the Fourth Proportional to 976,612.82, 1,463,147.55 and 721,078.27

Step by Step Solution

1. Step 1: Write the proportion equation
   976,612.82 : 1,463,147.55 = 721,078.27 : x
2. Step 2: Convert to fraction form
   976,612.82/1,463,147.55 = 721,078.27/x
3. Step 3: Cross multiply
   976,612.82x = 1,463,147.55 × 721,078.27
4. Step 4: Simplify right side
   976,612.82x = 1,055,043,900,450.87
5. Step 5: Solve for x
   x = 1,055,043,900,450.87/976,612.82
6. Step 6: Final answer
   x = 1,080,309.29