Finding the Fourth Proportional to 2,929.50, 4,394.49 and 877.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,929.50 : 4,394.49 = 877.50 : x
2. Step 2: Convert to fraction form
   2,929.50/4,394.49 = 877.50/x
3. Step 3: Cross multiply
   2,929.50x = 4,394.49 × 877.50
4. Step 4: Simplify right side
   2,929.50x = 3,856,164.98
5. Step 5: Solve for x
   x = 3,856,164.98/2,929.50
6. Step 6: Final answer
   x = 1,316.32