Finding the Fourth Proportional to 2,157,954.50, 3,237,087.27 and 828,258.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157,954.50 : 3,237,087.27 = 828,258.50 : x
2. Step 2: Convert to fraction form
   2,157,954.50/3,237,087.27 = 828,258.50/x
3. Step 3: Cross multiply
   2,157,954.50x = 3,237,087.27 × 828,258.50
4. Step 4: Simplify right side
   2,157,954.50x = 2,681,145,046,619.30
5. Step 5: Solve for x
   x = 2,681,145,046,619.30/2,157,954.50
6. Step 6: Final answer
   x = 1,242,447.44