Finding the Fourth Proportional to 2,655.12, 3,982.86 and 1,095.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,655.12 : 3,982.86 = 1,095.72 : x
2. Step 2: Convert to fraction form
   2,655.12/3,982.86 = 1,095.72/x
3. Step 3: Cross multiply
   2,655.12x = 3,982.86 × 1,095.72
4. Step 4: Simplify right side
   2,655.12x = 4,364,099.36
5. Step 5: Solve for x
   x = 4,364,099.36/2,655.12
6. Step 6: Final answer
   x = 1,643.65