Finding the Fourth Proportional to 2,627.20, 3,941.04 and 1,393.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.20 : 3,941.04 = 1,393.92 : x
2. Step 2: Convert to fraction form
   2,627.20/3,941.04 = 1,393.92/x
3. Step 3: Cross multiply
   2,627.20x = 3,941.04 × 1,393.92
4. Step 4: Simplify right side
   2,627.20x = 5,493,494.48
5. Step 5: Solve for x
   x = 5,493,494.48/2,627.20
6. Step 6: Final answer
   x = 2,091.01