Finding the Fourth Proportional to 1,128,016.98, 1,557,012 and 725,608.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,016.98 : 1,557,012 = 725,608.98 : x
2. Step 2: Convert to fraction form
   1,128,016.98/1,557,012 = 725,608.98/x
3. Step 3: Cross multiply
   1,128,016.98x = 1,557,012 × 725,608.98
4. Step 4: Simplify right side
   1,128,016.98x = 1,129,781,889,167.76
5. Step 5: Solve for x
   x = 1,129,781,889,167.76/1,128,016.98
6. Step 6: Final answer
   x = 1,001,564.61