Finding the Fourth Proportional to 2,647,987.20, 3,968,870.40 and 1,225,037.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647,987.20 : 3,968,870.40 = 1,225,037.52 : x
2. Step 2: Convert to fraction form
   2,647,987.20/3,968,870.40 = 1,225,037.52/x
3. Step 3: Cross multiply
   2,647,987.20x = 3,968,870.40 × 1,225,037.52
4. Step 4: Simplify right side
   2,647,987.20x = 4,862,015,152,017.41
5. Step 5: Solve for x
   x = 4,862,015,152,017.41/2,647,987.20
6. Step 6: Final answer
   x = 1,836,117.32