Finding the Fourth Proportional to 3,963.90, 5,948.28 and 1,774.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,963.90 : 5,948.28 = 1,774.48 : x
2. Step 2: Convert to fraction form
   3,963.90/5,948.28 = 1,774.48/x
3. Step 3: Cross multiply
   3,963.90x = 5,948.28 × 1,774.48
4. Step 4: Simplify right side
   3,963.90x = 10,555,103.89
5. Step 5: Solve for x
   x = 10,555,103.89/3,963.90
6. Step 6: Final answer
   x = 2,662.81