Finding the Fourth Proportional to 1,442,914.56, 1,990,738.55 and 831,055.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442,914.56 : 1,990,738.55 = 831,055.07 : x
2. Step 2: Convert to fraction form
   1,442,914.56/1,990,738.55 = 831,055.07/x
3. Step 3: Cross multiply
   1,442,914.56x = 1,990,738.55 × 831,055.07
4. Step 4: Simplify right side
   1,442,914.56x = 1,654,413,372,076.43
5. Step 5: Solve for x
   x = 1,654,413,372,076.43/1,442,914.56
6. Step 6: Final answer
   x = 1,146,577.50