Finding the Fourth Proportional to 3,365.32, 5,048.46 and 1,057

Step by Step Solution

1. Step 1: Write the proportion equation
   3,365.32 : 5,048.46 = 1,057 : x
2. Step 2: Convert to fraction form
   3,365.32/5,048.46 = 1,057/x
3. Step 3: Cross multiply
   3,365.32x = 5,048.46 × 1,057
4. Step 4: Simplify right side
   3,365.32x = 5,336,222.22
5. Step 5: Solve for x
   x = 5,336,222.22/3,365.32
6. Step 6: Final answer
   x = 1,585.65