Finding the Fourth Proportional to 3,851.02, 5,316.78 and 2,965.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,851.02 : 5,316.78 = 2,965.12 : x
2. Step 2: Convert to fraction form
   3,851.02/5,316.78 = 2,965.12/x
3. Step 3: Cross multiply
   3,851.02x = 5,316.78 × 2,965.12
4. Step 4: Simplify right side
   3,851.02x = 15,764,890.71
5. Step 5: Solve for x
   x = 15,764,890.71/3,851.02
6. Step 6: Final answer
   x = 4,093.69