Finding the Fourth Proportional to 1,258,751.84, 1,737,077.72 and 685,792

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258,751.84 : 1,737,077.72 = 685,792 : x
2. Step 2: Convert to fraction form
   1,258,751.84/1,737,077.72 = 685,792/x
3. Step 3: Cross multiply
   1,258,751.84x = 1,737,077.72 × 685,792
4. Step 4: Simplify right side
   1,258,751.84x = 1,191,274,003,754.24
5. Step 5: Solve for x
   x = 1,191,274,003,754.24/1,258,751.84
6. Step 6: Final answer
   x = 946,393.06