Finding the Fourth Proportional to 2,256,957.89, 3,114,601.38 and 1,290,108.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256,957.89 : 3,114,601.38 = 1,290,108.99 : x
2. Step 2: Convert to fraction form
   2,256,957.89/3,114,601.38 = 1,290,108.99/x
3. Step 3: Cross multiply
   2,256,957.89x = 3,114,601.38 × 1,290,108.99
4. Step 4: Simplify right side
   2,256,957.89x = 4,018,175,252,284.16
5. Step 5: Solve for x
   x = 4,018,175,252,284.16/2,256,957.89
6. Step 6: Final answer
   x = 1,780,350.12