Finding the Fourth Proportional to 3,405.28, 5,104.56 and 1,455.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,405.28 : 5,104.56 = 1,455.52 : x
2. Step 2: Convert to fraction form
   3,405.28/5,104.56 = 1,455.52/x
3. Step 3: Cross multiply
   3,405.28x = 5,104.56 × 1,455.52
4. Step 4: Simplify right side
   3,405.28x = 7,429,789.17
5. Step 5: Solve for x
   x = 7,429,789.17/3,405.28
6. Step 6: Final answer
   x = 2,181.84