Finding the Fourth Proportional to 1,435,776.32, 1,981,345.82 and 782,408.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435,776.32 : 1,981,345.82 = 782,408.05 : x
2. Step 2: Convert to fraction form
   1,435,776.32/1,981,345.82 = 782,408.05/x
3. Step 3: Cross multiply
   1,435,776.32x = 1,981,345.82 × 782,408.05
4. Step 4: Simplify right side
   1,435,776.32x = 1,550,220,919,401.85
5. Step 5: Solve for x
   x = 1,550,220,919,401.85/1,435,776.32
6. Step 6: Final answer
   x = 1,079,709.21