Finding the Fourth Proportional to 2,643,139.69, 3,964,713 and 724,067.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,643,139.69 : 3,964,713 = 724,067.96 : x
2. Step 2: Convert to fraction form
   2,643,139.69/3,964,713 = 724,067.96/x
3. Step 3: Cross multiply
   2,643,139.69x = 3,964,713 × 724,067.96
4. Step 4: Simplify right side
   2,643,139.69x = 2,870,721,634,071.92
5. Step 5: Solve for x
   x = 2,870,721,634,071.92/2,643,139.69
6. Step 6: Final answer
   x = 1,086,102.88