Finding the Fourth Proportional to 805,665.42, 1,111,846.14 and 443,116.71

Step by Step Solution

1. Step 1: Write the proportion equation
   805,665.42 : 1,111,846.14 = 443,116.71 : x
2. Step 2: Convert to fraction form
   805,665.42/1,111,846.14 = 443,116.71/x
3. Step 3: Cross multiply
   805,665.42x = 1,111,846.14 × 443,116.71
4. Step 4: Simplify right side
   805,665.42x = 492,677,603,583.00
5. Step 5: Solve for x
   x = 492,677,603,583.00/805,665.42
6. Step 6: Final answer
   x = 611,516.38