Finding the Fourth Proportional to 1,113,469.89, 1,671,044.49 and 814,721.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113,469.89 : 1,671,044.49 = 814,721.25 : x
2. Step 2: Convert to fraction form
   1,113,469.89/1,671,044.49 = 814,721.25/x
3. Step 3: Cross multiply
   1,113,469.89x = 1,671,044.49 × 814,721.25
4. Step 4: Simplify right side
   1,113,469.89x = 1,361,435,455,698.41
5. Step 5: Solve for x
   x = 1,361,435,455,698.41/1,113,469.89
6. Step 6: Final answer
   x = 1,222,696.25