Finding the Fourth Proportional to 3,686.18, 5,085.53 and 2,359.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686.18 : 5,085.53 = 2,359.67 : x
2. Step 2: Convert to fraction form
   3,686.18/5,085.53 = 2,359.67/x
3. Step 3: Cross multiply
   3,686.18x = 5,085.53 × 2,359.67
4. Step 4: Simplify right side
   3,686.18x = 12,000,172.58
5. Step 5: Solve for x
   x = 12,000,172.58/3,686.18
6. Step 6: Final answer
   x = 3,255.45