Finding the Fourth Proportional to 3,222.91, 4,795.76 and 3,211.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,222.91 : 4,795.76 = 3,211.98 : x
2. Step 2: Convert to fraction form
   3,222.91/4,795.76 = 3,211.98/x
3. Step 3: Cross multiply
   3,222.91x = 4,795.76 × 3,211.98
4. Step 4: Simplify right side
   3,222.91x = 15,403,885.20
5. Step 5: Solve for x
   x = 15,403,885.20/3,222.91
6. Step 6: Final answer
   x = 4,779.50