Finding the Fourth Proportional to 1,443,605.78, 1,992,222.99 and 831,710.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,605.78 : 1,992,222.99 = 831,710.52 : x
2. Step 2: Convert to fraction form
   1,443,605.78/1,992,222.99 = 831,710.52/x
3. Step 3: Cross multiply
   1,443,605.78x = 1,992,222.99 × 831,710.52
4. Step 4: Simplify right side
   1,443,605.78x = 1,656,952,818,968.85
5. Step 5: Solve for x
   x = 1,656,952,818,968.85/1,443,605.78
6. Step 6: Final answer
   x = 1,147,787.61