Finding the Fourth Proportional to 1,397,524.05, 2,094,791.29 and 638,227.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,397,524.05 : 2,094,791.29 = 638,227.69 : x
2. Step 2: Convert to fraction form
   1,397,524.05/2,094,791.29 = 638,227.69/x
3. Step 3: Cross multiply
   1,397,524.05x = 2,094,791.29 × 638,227.69
4. Step 4: Simplify right side
   1,397,524.05x = 1,336,953,799,216.27
5. Step 5: Solve for x
   x = 1,336,953,799,216.27/1,397,524.05
6. Step 6: Final answer
   x = 956,658.88