Finding the Fourth Proportional to 807,856.56, 1,114,835.82 and 445,281.12

Step by Step Solution

1. Step 1: Write the proportion equation
   807,856.56 : 1,114,835.82 = 445,281.12 : x
2. Step 2: Convert to fraction form
   807,856.56/1,114,835.82 = 445,281.12/x
3. Step 3: Cross multiply
   807,856.56x = 1,114,835.82 × 445,281.12
4. Step 4: Simplify right side
   807,856.56x = 496,415,342,545.72
5. Step 5: Solve for x
   x = 496,415,342,545.72/807,856.56
6. Step 6: Final answer
   x = 614,484.51