Finding the Fourth Proportional to 2,953,581.56, 4,431,119.55 and 823,665.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953,581.56 : 4,431,119.55 = 823,665.89 : x
2. Step 2: Convert to fraction form
   2,953,581.56/4,431,119.55 = 823,665.89/x
3. Step 3: Cross multiply
   2,953,581.56x = 4,431,119.55 × 823,665.89
4. Step 4: Simplify right side
   2,953,581.56x = 3,649,762,027,847.15
5. Step 5: Solve for x
   x = 3,649,762,027,847.15/2,953,581.56
6. Step 6: Final answer
   x = 1,235,707.21