Finding the Fourth Proportional to 3,851.76, 5,309.37 and 3,146.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,851.76 : 5,309.37 = 3,146.52 : x
2. Step 2: Convert to fraction form
   3,851.76/5,309.37 = 3,146.52/x
3. Step 3: Cross multiply
   3,851.76x = 5,309.37 × 3,146.52
4. Step 4: Simplify right side
   3,851.76x = 16,706,038.89
5. Step 5: Solve for x
   x = 16,706,038.89/3,851.76
6. Step 6: Final answer
   x = 4,337.25