Finding the Fourth Proportional to 3,654.65, 5,482.89 and 1,057.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,654.65 : 5,482.89 = 1,057.59 : x
2. Step 2: Convert to fraction form
   3,654.65/5,482.89 = 1,057.59/x
3. Step 3: Cross multiply
   3,654.65x = 5,482.89 × 1,057.59
4. Step 4: Simplify right side
   3,654.65x = 5,798,644.35
5. Step 5: Solve for x
   x = 5,798,644.35/3,654.65
6. Step 6: Final answer
   x = 1,586.65