Finding the Fourth Proportional to 2,347.58, 3,519.05 and 1,308.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,347.58 : 3,519.05 = 1,308.05 : x
2. Step 2: Convert to fraction form
   2,347.58/3,519.05 = 1,308.05/x
3. Step 3: Cross multiply
   2,347.58x = 3,519.05 × 1,308.05
4. Step 4: Simplify right side
   2,347.58x = 4,603,082.41
5. Step 5: Solve for x
   x = 4,603,082.41/2,347.58
6. Step 6: Final answer
   x = 1,960.78