Finding the Fourth Proportional to 2,155,674.78, 3,234,031.56 and 807,849.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,674.78 : 3,234,031.56 = 807,849.30 : x
2. Step 2: Convert to fraction form
   2,155,674.78/3,234,031.56 = 807,849.30/x
3. Step 3: Cross multiply
   2,155,674.78x = 3,234,031.56 × 807,849.30
4. Step 4: Simplify right side
   2,155,674.78x = 2,612,610,131,923.91
5. Step 5: Solve for x
   x = 2,612,610,131,923.91/2,155,674.78
6. Step 6: Final answer
   x = 1,211,968.59