Finding the Fourth Proportional to 2,632,747.50, 3,949,121.25 and 638,203.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632,747.50 : 3,949,121.25 = 638,203.50 : x
2. Step 2: Convert to fraction form
   2,632,747.50/3,949,121.25 = 638,203.50/x
3. Step 3: Cross multiply
   2,632,747.50x = 3,949,121.25 × 638,203.50
4. Step 4: Simplify right side
   2,632,747.50x = 2,520,343,003,674.38
5. Step 5: Solve for x
   x = 2,520,343,003,674.38/2,632,747.50
6. Step 6: Final answer
   x = 957,305.25