Finding the Fourth Proportional to 805,606.06, 1,111,764.89 and 443,057.98

Step by Step Solution

1. Step 1: Write the proportion equation
   805,606.06 : 1,111,764.89 = 443,057.98 : x
2. Step 2: Convert to fraction form
   805,606.06/1,111,764.89 = 443,057.98/x
3. Step 3: Cross multiply
   805,606.06x = 1,111,764.89 × 443,057.98
4. Step 4: Simplify right side
   805,606.06x = 492,576,306,398.32
5. Step 5: Solve for x
   x = 492,576,306,398.32/805,606.06
6. Step 6: Final answer
   x = 611,435.70