Finding the Fourth Proportional to 1,333,406.36, 1,840,105.62 and 721,559.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333,406.36 : 1,840,105.62 = 721,559.06 : x
2. Step 2: Convert to fraction form
   1,333,406.36/1,840,105.62 = 721,559.06/x
3. Step 3: Cross multiply
   1,333,406.36x = 1,840,105.62 × 721,559.06
4. Step 4: Simplify right side
   1,333,406.36x = 1,327,744,868,659.59
5. Step 5: Solve for x
   x = 1,327,744,868,659.59/1,333,406.36
6. Step 6: Final answer
   x = 995,754.12