Finding the Fourth Proportional to 3,893.52, 5,832.15 and 1,815.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,893.52 : 5,832.15 = 1,815.33 : x
2. Step 2: Convert to fraction form
   3,893.52/5,832.15 = 1,815.33/x
3. Step 3: Cross multiply
   3,893.52x = 5,832.15 × 1,815.33
4. Step 4: Simplify right side
   3,893.52x = 10,587,276.86
5. Step 5: Solve for x
   x = 10,587,276.86/3,893.52
6. Step 6: Final answer
   x = 2,719.20