Finding the Fourth Proportional to 1,191,435.39, 1,644,191.82 and 647,572.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191,435.39 : 1,644,191.82 = 647,572.41 : x
2. Step 2: Convert to fraction form
   1,191,435.39/1,644,191.82 = 647,572.41/x
3. Step 3: Cross multiply
   1,191,435.39x = 1,644,191.82 × 647,572.41
4. Step 4: Simplify right side
   1,191,435.39x = 1,064,733,259,379.69
5. Step 5: Solve for x
   x = 1,064,733,259,379.69/1,191,435.39
6. Step 6: Final answer
   x = 893,655.89