Finding the Fourth Proportional to 1,333,539.98, 1,840,270.83 and 721,679.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333,539.98 : 1,840,270.83 = 721,679.30 : x
2. Step 2: Convert to fraction form
   1,333,539.98/1,840,270.83 = 721,679.30/x
3. Step 3: Cross multiply
   1,333,539.98x = 1,840,270.83 × 721,679.30
4. Step 4: Simplify right side
   1,333,539.98x = 1,328,085,364,404.82
5. Step 5: Solve for x
   x = 1,328,085,364,404.82/1,333,539.98
6. Step 6: Final answer
   x = 995,909.67