Finding the Fourth Proportional to 2,616,998.79, 3,925,493.33 and 820,019.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616,998.79 : 3,925,493.33 = 820,019.91 : x
2. Step 2: Convert to fraction form
   2,616,998.79/3,925,493.33 = 820,019.91/x
3. Step 3: Cross multiply
   2,616,998.79x = 3,925,493.33 × 820,019.91
4. Step 4: Simplify right side
   2,616,998.79x = 3,218,982,683,072.10
5. Step 5: Solve for x
   x = 3,218,982,683,072.10/2,616,998.79
6. Step 6: Final answer
   x = 1,230,028.34