Finding the Fourth Proportional to 2,357.42, 3,518.85 and 2,080.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,357.42 : 3,518.85 = 2,080.67 : x
2. Step 2: Convert to fraction form
   2,357.42/3,518.85 = 2,080.67/x
3. Step 3: Cross multiply
   2,357.42x = 3,518.85 × 2,080.67
4. Step 4: Simplify right side
   2,357.42x = 7,321,555.23
5. Step 5: Solve for x
   x = 7,321,555.23/2,357.42
6. Step 6: Final answer
   x = 3,105.75