Finding the Fourth Proportional to 2,456,720.21, 3,390,287.41 and 1,424,839.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456,720.21 : 3,390,287.41 = 1,424,839.89 : x
2. Step 2: Convert to fraction form
   2,456,720.21/3,390,287.41 = 1,424,839.89/x
3. Step 3: Cross multiply
   2,456,720.21x = 3,390,287.41 × 1,424,839.89
4. Step 4: Simplify right side
   2,456,720.21x = 4,830,616,716,257.15
5. Step 5: Solve for x
   x = 4,830,616,716,257.15/2,456,720.21
6. Step 6: Final answer
   x = 1,966,286.88