Finding the Fourth Proportional to 1,978,066, 2,729,731.08 and 1,072,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978,066 : 2,729,731.08 = 1,072,648.72 : x
2. Step 2: Convert to fraction form
   1,978,066/2,729,731.08 = 1,072,648.72/x
3. Step 3: Cross multiply
   1,978,066x = 2,729,731.08 × 1,072,648.72
4. Step 4: Simplify right side
   1,978,066x = 2,928,042,548,906.22
5. Step 5: Solve for x
   x = 2,928,042,548,906.22/1,978,066
6. Step 6: Final answer
   x = 1,480,255.23