Finding the Fourth Proportional to 2,348.82, 3,520.18 and 1,308.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,348.82 : 3,520.18 = 1,308.78 : x
2. Step 2: Convert to fraction form
   2,348.82/3,520.18 = 1,308.78/x
3. Step 3: Cross multiply
   2,348.82x = 3,520.18 × 1,308.78
4. Step 4: Simplify right side
   2,348.82x = 4,607,148.66
5. Step 5: Solve for x
   x = 4,607,148.66/2,348.82
6. Step 6: Final answer
   x = 1,961.47