Finding the Fourth Proportional to 1,258,469.48, 1,736,638.79 and 769,258.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258,469.48 : 1,736,638.79 = 769,258.04 : x
2. Step 2: Convert to fraction form
   1,258,469.48/1,736,638.79 = 769,258.04/x
3. Step 3: Cross multiply
   1,258,469.48x = 1,736,638.79 × 769,258.04
4. Step 4: Simplify right side
   1,258,469.48x = 1,335,923,339,253.89
5. Step 5: Solve for x
   x = 1,335,923,339,253.89/1,258,469.48
6. Step 6: Final answer
   x = 1,061,546.07