Finding the Fourth Proportional to 1,783,072, 2,460,682.56 and 978,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783,072 : 2,460,682.56 = 978,256 : x
2. Step 2: Convert to fraction form
   1,783,072/2,460,682.56 = 978,256/x
3. Step 3: Cross multiply
   1,783,072x = 2,460,682.56 × 978,256
4. Step 4: Simplify right side
   1,783,072x = 2,407,177,478,415.36
5. Step 5: Solve for x
   x = 2,407,177,478,415.36/1,783,072
6. Step 6: Final answer
   x = 1,350,016.98