Finding the Fourth Proportional to 2,648.58, 3,970.44 and 1,348.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.58 : 3,970.44 = 1,348.53 : x
2. Step 2: Convert to fraction form
   2,648.58/3,970.44 = 1,348.53/x
3. Step 3: Cross multiply
   2,648.58x = 3,970.44 × 1,348.53
4. Step 4: Simplify right side
   2,648.58x = 5,354,257.45
5. Step 5: Solve for x
   x = 5,354,257.45/2,648.58
6. Step 6: Final answer
   x = 2,021.56