Finding the Fourth Proportional to 2,239.34, 3,357.80 and 1,718.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,239.34 : 3,357.80 = 1,718.05 : x
2. Step 2: Convert to fraction form
   2,239.34/3,357.80 = 1,718.05/x
3. Step 3: Cross multiply
   2,239.34x = 3,357.80 × 1,718.05
4. Step 4: Simplify right side
   2,239.34x = 5,768,870.34
5. Step 5: Solve for x
   x = 5,768,870.34/2,239.34
6. Step 6: Final answer
   x = 2,576.15