Finding the Fourth Proportional to 2,978.73, 4,105.89 and 2,348.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.73 : 4,105.89 = 2,348.28 : x
2. Step 2: Convert to fraction form
   2,978.73/4,105.89 = 2,348.28/x
3. Step 3: Cross multiply
   2,978.73x = 4,105.89 × 2,348.28
4. Step 4: Simplify right side
   2,978.73x = 9,641,779.37
5. Step 5: Solve for x
   x = 9,641,779.37/2,978.73
6. Step 6: Final answer
   x = 3,236.88