Finding the Fourth Proportional to 2,938.93, 4,402.51 and 1,768.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,938.93 : 4,402.51 = 1,768.28 : x
2. Step 2: Convert to fraction form
   2,938.93/4,402.51 = 1,768.28/x
3. Step 3: Cross multiply
   2,938.93x = 4,402.51 × 1,768.28
4. Step 4: Simplify right side
   2,938.93x = 7,784,870.38
5. Step 5: Solve for x
   x = 7,784,870.38/2,938.93
6. Step 6: Final answer
   x = 2,648.88