Finding the Fourth Proportional to 5,659.72, 8,489.94 and 1,764.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,659.72 : 8,489.94 = 1,764.28 : x
2. Step 2: Convert to fraction form
   5,659.72/8,489.94 = 1,764.28/x
3. Step 3: Cross multiply
   5,659.72x = 8,489.94 × 1,764.28
4. Step 4: Simplify right side
   5,659.72x = 14,978,631.34
5. Step 5: Solve for x
   x = 14,978,631.34/5,659.72
6. Step 6: Final answer
   x = 2,646.53