Finding the Fourth Proportional to 2,536.57, 3,806.55 and 893.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,536.57 : 3,806.55 = 893.11 : x
2. Step 2: Convert to fraction form
   2,536.57/3,806.55 = 893.11/x
3. Step 3: Cross multiply
   2,536.57x = 3,806.55 × 893.11
4. Step 4: Simplify right side
   2,536.57x = 3,399,667.87
5. Step 5: Solve for x
   x = 3,399,667.87/2,536.57
6. Step 6: Final answer
   x = 1,340.26