Finding the Fourth Proportional to 1,443,425.47, 1,992,075.42 and 831,601.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,425.47 : 1,992,075.42 = 831,601.28 : x
2. Step 2: Convert to fraction form
   1,443,425.47/1,992,075.42 = 831,601.28/x
3. Step 3: Cross multiply
   1,443,425.47x = 1,992,075.42 × 831,601.28
4. Step 4: Simplify right side
   1,443,425.47x = 1,656,612,477,227.23
5. Step 5: Solve for x
   x = 1,656,612,477,227.23/1,443,425.47
6. Step 6: Final answer
   x = 1,147,695.20