Finding the Fourth Proportional to 1,079,196.72, 1,489,471.56 and 1,031,365.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079,196.72 : 1,489,471.56 = 1,031,365.68 : x
2. Step 2: Convert to fraction form
   1,079,196.72/1,489,471.56 = 1,031,365.68/x
3. Step 3: Cross multiply
   1,079,196.72x = 1,489,471.56 × 1,031,365.68
4. Step 4: Simplify right side
   1,079,196.72x = 1,536,189,848,320.06
5. Step 5: Solve for x
   x = 1,536,189,848,320.06/1,079,196.72
6. Step 6: Final answer
   x = 1,423,456.74