Finding the Fourth Proportional to 1,122,754.72, 1,550,436.24 and 721,046.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,122,754.72 : 1,550,436.24 = 721,046.56 : x
2. Step 2: Convert to fraction form
   1,122,754.72/1,550,436.24 = 721,046.56/x
3. Step 3: Cross multiply
   1,122,754.72x = 1,550,436.24 × 721,046.56
4. Step 4: Simplify right side
   1,122,754.72x = 1,117,936,717,351.33
5. Step 5: Solve for x
   x = 1,117,936,717,351.33/1,122,754.72
6. Step 6: Final answer
   x = 995,708.77