Finding the Fourth Proportional to 805,556.37, 1,111,696.33 and 443,007.82

Step by Step Solution

1. Step 1: Write the proportion equation
   805,556.37 : 1,111,696.33 = 443,007.82 : x
2. Step 2: Convert to fraction form
   805,556.37/1,111,696.33 = 443,007.82/x
3. Step 3: Cross multiply
   805,556.37x = 1,111,696.33 × 443,007.82
4. Step 4: Simplify right side
   805,556.37x = 492,490,167,655.30
5. Step 5: Solve for x
   x = 492,490,167,655.30/805,556.37
6. Step 6: Final answer
   x = 611,366.49