Finding the Fourth Proportional to 1,078,846.27, 1,618,991.72 and 447,760.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,846.27 : 1,618,991.72 = 447,760.69 : x
2. Step 2: Convert to fraction form
   1,078,846.27/1,618,991.72 = 447,760.69/x
3. Step 3: Cross multiply
   1,078,846.27x = 1,618,991.72 × 447,760.69
4. Step 4: Simplify right side
   1,078,846.27x = 724,920,849,651.49
5. Step 5: Solve for x
   x = 724,920,849,651.49/1,078,846.27
6. Step 6: Final answer
   x = 671,940.82