Finding the Fourth Proportional to 1,229,682.89, 1,696,965.39 and 685,853.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229,682.89 : 1,696,965.39 = 685,853.91 : x
2. Step 2: Convert to fraction form
   1,229,682.89/1,696,965.39 = 685,853.91/x
3. Step 3: Cross multiply
   1,229,682.89x = 1,696,965.39 × 685,853.91
4. Step 4: Simplify right side
   1,229,682.89x = 1,163,870,347,866.17
5. Step 5: Solve for x
   x = 1,163,870,347,866.17/1,229,682.89
6. Step 6: Final answer
   x = 946,480.07