Finding the Fourth Proportional to 805,641.33, 1,111,762.83 and 443,065.18

Step by Step Solution

1. Step 1: Write the proportion equation
   805,641.33 : 1,111,762.83 = 443,065.18 : x
2. Step 2: Convert to fraction form
   805,641.33/1,111,762.83 = 443,065.18/x
3. Step 3: Cross multiply
   805,641.33x = 1,111,762.83 × 443,065.18
4. Step 4: Simplify right side
   805,641.33x = 492,583,398,391.26
5. Step 5: Solve for x
   x = 492,583,398,391.26/805,641.33
6. Step 6: Final answer
   x = 611,417.74