Finding the Fourth Proportional to 1,327,769.39, 1,988,290.89 and 823,315.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,327,769.39 : 1,988,290.89 = 823,315.63 : x
2. Step 2: Convert to fraction form
   1,327,769.39/1,988,290.89 = 823,315.63/x
3. Step 3: Cross multiply
   1,327,769.39x = 1,988,290.89 × 823,315.63
4. Step 4: Simplify right side
   1,327,769.39x = 1,636,990,961,527.15
5. Step 5: Solve for x
   x = 1,636,990,961,527.15/1,327,769.39
6. Step 6: Final answer
   x = 1,232,888.01