Finding the Fourth Proportional to 1,456,865.28, 2,185,560.72 and 445,968.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456,865.28 : 2,185,560.72 = 445,968.72 : x
2. Step 2: Convert to fraction form
   1,456,865.28/2,185,560.72 = 445,968.72/x
3. Step 3: Cross multiply
   1,456,865.28x = 2,185,560.72 × 445,968.72
4. Step 4: Simplify right side
   1,456,865.28x = 974,691,716,780.68
5. Step 5: Solve for x
   x = 974,691,716,780.68/1,456,865.28
6. Step 6: Final answer
   x = 669,033.53