Finding the Fourth Proportional to 2,256,910.43, 3,114,536.05 and 1,290,061.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256,910.43 : 3,114,536.05 = 1,290,061.48 : x
2. Step 2: Convert to fraction form
   2,256,910.43/3,114,536.05 = 1,290,061.48/x
3. Step 3: Cross multiply
   2,256,910.43x = 3,114,536.05 × 1,290,061.48
4. Step 4: Simplify right side
   2,256,910.43x = 4,017,942,986,176.35
5. Step 5: Solve for x
   x = 4,017,942,986,176.35/2,256,910.43
6. Step 6: Final answer
   x = 1,780,284.65