Finding the Fourth Proportional to 6,488.69, 8,954.28 and 3,656.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,488.69 : 8,954.28 = 3,656.31 : x
2. Step 2: Convert to fraction form
   6,488.69/8,954.28 = 3,656.31/x
3. Step 3: Cross multiply
   6,488.69x = 8,954.28 × 3,656.31
4. Step 4: Simplify right side
   6,488.69x = 32,739,680.91
5. Step 5: Solve for x
   x = 32,739,680.91/6,488.69
6. Step 6: Final answer
   x = 5,045.65