Finding the Fourth Proportional to 5,104.69, 7,656.86 and 1,815.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,104.69 : 7,656.86 = 1,815.48 : x
2. Step 2: Convert to fraction form
   5,104.69/7,656.86 = 1,815.48/x
3. Step 3: Cross multiply
   5,104.69x = 7,656.86 × 1,815.48
4. Step 4: Simplify right side
   5,104.69x = 13,900,880.73
5. Step 5: Solve for x
   x = 13,900,880.73/5,104.69
6. Step 6: Final answer
   x = 2,723.16