Finding the Fourth Proportional to 1,978.38, 2,963.93 and 1,759.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.38 : 2,963.93 = 1,759.68 : x
2. Step 2: Convert to fraction form
   1,978.38/2,963.93 = 1,759.68/x
3. Step 3: Cross multiply
   1,978.38x = 2,963.93 × 1,759.68
4. Step 4: Simplify right side
   1,978.38x = 5,215,559.54
5. Step 5: Solve for x
   x = 5,215,559.54/1,978.38
6. Step 6: Final answer
   x = 2,636.28