Finding the Fourth Proportional to 1,321,991.94, 1,824,185.57 and 805,557.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,321,991.94 : 1,824,185.57 = 805,557.61 : x
2. Step 2: Convert to fraction form
   1,321,991.94/1,824,185.57 = 805,557.61/x
3. Step 3: Cross multiply
   1,321,991.94x = 1,824,185.57 × 805,557.61
4. Step 4: Simplify right side
   1,321,991.94x = 1,469,486,567,965.69
5. Step 5: Solve for x
   x = 1,469,486,567,965.69/1,321,991.94
6. Step 6: Final answer
   x = 1,111,569.99