Finding the Fourth Proportional to 2,632.69, 3,949.72 and 877.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.69 : 3,949.72 = 877.96 : x
2. Step 2: Convert to fraction form
   2,632.69/3,949.72 = 877.96/x
3. Step 3: Cross multiply
   2,632.69x = 3,949.72 × 877.96
4. Step 4: Simplify right side
   2,632.69x = 3,467,696.17
5. Step 5: Solve for x
   x = 3,467,696.17/2,632.69
6. Step 6: Final answer
   x = 1,317.17