Finding the Fourth Proportional to 856,978.56, 1,179,938.01 and 727,647.48

Step by Step Solution

1. Step 1: Write the proportion equation
   856,978.56 : 1,179,938.01 = 727,647.48 : x
2. Step 2: Convert to fraction form
   856,978.56/1,179,938.01 = 727,647.48/x
3. Step 3: Cross multiply
   856,978.56x = 1,179,938.01 × 727,647.48
4. Step 4: Simplify right side
   856,978.56x = 858,578,919,532.72
5. Step 5: Solve for x
   x = 858,578,919,532.72/856,978.56
6. Step 6: Final answer
   x = 1,001,867.44