Finding the Fourth Proportional to 2,757,257.90, 4,136,016.45 and 864,061.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,757,257.90 : 4,136,016.45 = 864,061.10 : x
2. Step 2: Convert to fraction form
   2,757,257.90/4,136,016.45 = 864,061.10/x
3. Step 3: Cross multiply
   2,757,257.90x = 4,136,016.45 × 864,061.10
4. Step 4: Simplify right side
   2,757,257.90x = 3,573,770,923,405.10
5. Step 5: Solve for x
   x = 3,573,770,923,405.10/2,757,257.90
6. Step 6: Final answer
   x = 1,296,132.26