Finding the Fourth Proportional to 1,108,949.40, 1,530,359.33 and 612,249.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108,949.40 : 1,530,359.33 = 612,249.30 : x
2. Step 2: Convert to fraction form
   1,108,949.40/1,530,359.33 = 612,249.30/x
3. Step 3: Cross multiply
   1,108,949.40x = 1,530,359.33 × 612,249.30
4. Step 4: Simplify right side
   1,108,949.40x = 936,961,425,479.72
5. Step 5: Solve for x
   x = 936,961,425,479.72/1,108,949.40
6. Step 6: Final answer
   x = 844,909.09