Finding the Fourth Proportional to 2,453.63, 3,680.52 and 810.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.63 : 3,680.52 = 810.14 : x
2. Step 2: Convert to fraction form
   2,453.63/3,680.52 = 810.14/x
3. Step 3: Cross multiply
   2,453.63x = 3,680.52 × 810.14
4. Step 4: Simplify right side
   2,453.63x = 2,981,736.47
5. Step 5: Solve for x
   x = 2,981,736.47/2,453.63
6. Step 6: Final answer
   x = 1,215.23