Finding the Fourth Proportional to 1,191,429.39, 1,644,183.54 and 647,566.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,429.39 : 1,644,183.54 = 647,566.41 : x
2. Step 2: Convert to fraction form
   1,191,429.39/1,644,183.54 = 647,566.41/x
3. Step 3: Cross multiply
   1,191,429.39x = 1,644,183.54 × 647,566.41
4. Step 4: Simplify right side
   1,191,429.39x = 1,064,718,032,378.89
5. Step 5: Solve for x
   x = 1,064,718,032,378.89/1,191,429.39
6. Step 6: Final answer
   x = 893,647.61