Finding the Fourth Proportional to 806,020.86, 1,112,308.83 and 443,436.96

Step by Step Solution

1. Step 1: Write the proportion equation
   806,020.86 : 1,112,308.83 = 443,436.96 : x
2. Step 2: Convert to fraction form
   806,020.86/1,112,308.83 = 443,436.96/x
3. Step 3: Cross multiply
   806,020.86x = 1,112,308.83 × 443,436.96
4. Step 4: Simplify right side
   806,020.86x = 493,238,846,156.36
5. Step 5: Solve for x
   x = 493,238,846,156.36/806,020.86
6. Step 6: Final answer
   x = 611,943.03