Finding the Fourth Proportional to 3,768.92, 5,645.82 and 1,815.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.92 : 5,645.82 = 1,815.32 : x
2. Step 2: Convert to fraction form
   3,768.92/5,645.82 = 1,815.32/x
3. Step 3: Cross multiply
   3,768.92x = 5,645.82 × 1,815.32
4. Step 4: Simplify right side
   3,768.92x = 10,248,969.96
5. Step 5: Solve for x
   x = 10,248,969.96/3,768.92
6. Step 6: Final answer
   x = 2,719.34