Finding the Fourth Proportional to 3,252,796.41, 4,879,436.56 and 978,138.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,252,796.41 : 4,879,436.56 = 978,138.72 : x
2. Step 2: Convert to fraction form
   3,252,796.41/4,879,436.56 = 978,138.72/x
3. Step 3: Cross multiply
   3,252,796.41x = 4,879,436.56 × 978,138.72
4. Step 4: Simplify right side
   3,252,796.41x = 4,772,765,831,119.60
5. Step 5: Solve for x
   x = 4,772,765,831,119.60/3,252,796.41
6. Step 6: Final answer
   x = 1,467,280.83