Finding the Fourth Proportional to 2,952.50, 4,427.71 and 871.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,952.50 : 4,427.71 = 871.95 : x
2. Step 2: Convert to fraction form
   2,952.50/4,427.71 = 871.95/x
3. Step 3: Cross multiply
   2,952.50x = 4,427.71 × 871.95
4. Step 4: Simplify right side
   2,952.50x = 3,860,741.73
5. Step 5: Solve for x
   x = 3,860,741.73/2,952.50
6. Step 6: Final answer
   x = 1,307.62