Finding the Fourth Proportional to 2,546.51, 3,819.83 and 815.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,546.51 : 3,819.83 = 815.14 : x
2. Step 2: Convert to fraction form
   2,546.51/3,819.83 = 815.14/x
3. Step 3: Cross multiply
   2,546.51x = 3,819.83 × 815.14
4. Step 4: Simplify right side
   2,546.51x = 3,113,673.05
5. Step 5: Solve for x
   x = 3,113,673.05/2,546.51
6. Step 6: Final answer
   x = 1,222.72