Finding the Fourth Proportional to 4,891.59, 7,297.72 and 4,490.18

Step by Step Solution

1. Step 1: Write the proportion equation
   4,891.59 : 7,297.72 = 4,490.18 : x
2. Step 2: Convert to fraction form
   4,891.59/7,297.72 = 4,490.18/x
3. Step 3: Cross multiply
   4,891.59x = 7,297.72 × 4,490.18
4. Step 4: Simplify right side
   4,891.59x = 32,768,109.72
5. Step 5: Solve for x
   x = 32,768,109.72/4,891.59
6. Step 6: Final answer
   x = 6,698.87