Finding the Fourth Proportional to 3,777.14, 5,640.27 and 3,085.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,777.14 : 5,640.27 = 3,085.18 : x
2. Step 2: Convert to fraction form
   3,777.14/5,640.27 = 3,085.18/x
3. Step 3: Cross multiply
   3,777.14x = 5,640.27 × 3,085.18
4. Step 4: Simplify right side
   3,777.14x = 17,401,222.53
5. Step 5: Solve for x
   x = 17,401,222.53/3,777.14
6. Step 6: Final answer
   x = 4,606.98