Finding the Fourth Proportional to 2,191.82, 3,021.57 and 1,351.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.82 : 3,021.57 = 1,351.96 : x
2. Step 2: Convert to fraction form
   2,191.82/3,021.57 = 1,351.96/x
3. Step 3: Cross multiply
   2,191.82x = 3,021.57 × 1,351.96
4. Step 4: Simplify right side
   2,191.82x = 4,085,041.78
5. Step 5: Solve for x
   x = 4,085,041.78/2,191.82
6. Step 6: Final answer
   x = 1,863.77