Finding the Fourth Proportional to 2,257,097.72, 3,114,794.36 and 1,290,248.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257,097.72 : 3,114,794.36 = 1,290,248.78 : x
2. Step 2: Convert to fraction form
   2,257,097.72/3,114,794.36 = 1,290,248.78/x
3. Step 3: Cross multiply
   2,257,097.72x = 3,114,794.36 × 1,290,248.78
4. Step 4: Simplify right side
   2,257,097.72x = 4,018,859,622,940.88
5. Step 5: Solve for x
   x = 4,018,859,622,940.88/2,257,097.72
6. Step 6: Final answer
   x = 1,780,543.03