Finding the Fourth Proportional to 2,347.98, 3,519.65 and 1,308.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,347.98 : 3,519.65 = 1,308.47 : x
2. Step 2: Convert to fraction form
   2,347.98/3,519.65 = 1,308.47/x
3. Step 3: Cross multiply
   2,347.98x = 3,519.65 × 1,308.47
4. Step 4: Simplify right side
   2,347.98x = 4,605,361.91
5. Step 5: Solve for x
   x = 4,605,361.91/2,347.98
6. Step 6: Final answer
   x = 1,961.42