Finding the Fourth Proportional to 3,656.52, 5,485.74 and 1,059.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,656.52 : 5,485.74 = 1,059.72 : x
2. Step 2: Convert to fraction form
   3,656.52/5,485.74 = 1,059.72/x
3. Step 3: Cross multiply
   3,656.52x = 5,485.74 × 1,059.72
4. Step 4: Simplify right side
   3,656.52x = 5,813,348.39
5. Step 5: Solve for x
   x = 5,813,348.39/3,656.52
6. Step 6: Final answer
   x = 1,589.86