Finding the Fourth Proportional to 2,397.76, 3,308.68 and 1,768.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,397.76 : 3,308.68 = 1,768.63 : x
2. Step 2: Convert to fraction form
   2,397.76/3,308.68 = 1,768.63/x
3. Step 3: Cross multiply
   2,397.76x = 3,308.68 × 1,768.63
4. Step 4: Simplify right side
   2,397.76x = 5,851,830.71
5. Step 5: Solve for x
   x = 5,851,830.71/2,397.76
6. Step 6: Final answer
   x = 2,440.54