Finding the Fourth Proportional to 831,642.67, 1,147,665.31 and 469,065.43

Step by Step Solution

1. Step 1: Write the proportion equation
   831,642.67 : 1,147,665.31 = 469,065.43 : x
2. Step 2: Convert to fraction form
   831,642.67/1,147,665.31 = 469,065.43/x
3. Step 3: Cross multiply
   831,642.67x = 1,147,665.31 × 469,065.43
4. Step 4: Simplify right side
   831,642.67x = 538,330,122,131.23
5. Step 5: Solve for x
   x = 538,330,122,131.23/831,642.67
6. Step 6: Final answer
   x = 647,309.41