Finding the Fourth Proportional to 2,632,588.50, 3,948,882.78 and 638,044.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632,588.50 : 3,948,882.78 = 638,044.50 : x
2. Step 2: Convert to fraction form
   2,632,588.50/3,948,882.78 = 638,044.50/x
3. Step 3: Cross multiply
   2,632,588.50x = 3,948,882.78 × 638,044.50
4. Step 4: Simplify right side
   2,632,588.50x = 2,519,562,938,923.71
5. Step 5: Solve for x
   x = 2,519,562,938,923.71/2,632,588.50
6. Step 6: Final answer
   x = 957,066.76