Finding the Fourth Proportional to 2,191.27, 3,288.35 and 1,036.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.27 : 3,288.35 = 1,036.39 : x
2. Step 2: Convert to fraction form
   2,191.27/3,288.35 = 1,036.39/x
3. Step 3: Cross multiply
   2,191.27x = 3,288.35 × 1,036.39
4. Step 4: Simplify right side
   2,191.27x = 3,408,013.06
5. Step 5: Solve for x
   x = 3,408,013.06/2,191.27
6. Step 6: Final answer
   x = 1,555.27