Finding the Fourth Proportional to 1,958.87, 2,930.89 and 1,208.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,958.87 : 2,930.89 = 1,208.56 : x
2. Step 2: Convert to fraction form
   1,958.87/2,930.89 = 1,208.56/x
3. Step 3: Cross multiply
   1,958.87x = 2,930.89 × 1,208.56
4. Step 4: Simplify right side
   1,958.87x = 3,542,162.78
5. Step 5: Solve for x
   x = 3,542,162.78/1,958.87
6. Step 6: Final answer
   x = 1,808.26