Finding the Fourth Proportional to 1,298,596.12, 1,792,058.88 and 725,636.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298,596.12 : 1,792,058.88 = 725,636.86 : x
2. Step 2: Convert to fraction form
   1,298,596.12/1,792,058.88 = 725,636.86/x
3. Step 3: Cross multiply
   1,298,596.12x = 1,792,058.88 × 725,636.86
4. Step 4: Simplify right side
   1,298,596.12x = 1,300,383,978,618.32
5. Step 5: Solve for x
   x = 1,300,383,978,618.32/1,298,596.12
6. Step 6: Final answer
   x = 1,001,376.76