Finding the Fourth Proportional to 1,298,615.10, 1,792,054.44 and 725,659.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298,615.10 : 1,792,054.44 = 725,659.98 : x
2. Step 2: Convert to fraction form
   1,298,615.10/1,792,054.44 = 725,659.98/x
3. Step 3: Cross multiply
   1,298,615.10x = 1,792,054.44 × 725,659.98
4. Step 4: Simplify right side
   1,298,615.10x = 1,300,422,189,089.31
5. Step 5: Solve for x
   x = 1,300,422,189,089.31/1,298,615.10
6. Step 6: Final answer
   x = 1,001,391.55