Finding the Fourth Proportional to 2,601.06, 3,903.64 and 1,369.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,601.06 : 3,903.64 = 1,369.20 : x
2. Step 2: Convert to fraction form
   2,601.06/3,903.64 = 1,369.20/x
3. Step 3: Cross multiply
   2,601.06x = 3,903.64 × 1,369.20
4. Step 4: Simplify right side
   2,601.06x = 5,344,863.89
5. Step 5: Solve for x
   x = 5,344,863.89/2,601.06
6. Step 6: Final answer
   x = 2,054.88