Finding the Fourth Proportional to 2,623,333.09, 3,936,143.22 and 918,699.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,623,333.09 : 3,936,143.22 = 918,699.23 : x
2. Step 2: Convert to fraction form
   2,623,333.09/3,936,143.22 = 918,699.23/x
3. Step 3: Cross multiply
   2,623,333.09x = 3,936,143.22 × 918,699.23
4. Step 4: Simplify right side
   2,623,333.09x = 3,616,131,745,383.72
5. Step 5: Solve for x
   x = 3,616,131,745,383.72/2,623,333.09
6. Step 6: Final answer
   x = 1,378,449.33