Finding the Fourth Proportional to 2,632,615.67, 3,948,923.55 and 638,071.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632,615.67 : 3,948,923.55 = 638,071.67 : x
2. Step 2: Convert to fraction form
   2,632,615.67/3,948,923.55 = 638,071.67/x
3. Step 3: Cross multiply
   2,632,615.67x = 3,948,923.55 × 638,071.67
4. Step 4: Simplify right side
   2,632,615.67x = 2,519,696,244,250.83
5. Step 5: Solve for x
   x = 2,519,696,244,250.83/2,632,615.67
6. Step 6: Final answer
   x = 957,107.52