Finding the Fourth Proportional to 3,690.65, 5,530.61 and 2,282.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,690.65 : 5,530.61 = 2,282.06 : x
2. Step 2: Convert to fraction form
   3,690.65/5,530.61 = 2,282.06/x
3. Step 3: Cross multiply
   3,690.65x = 5,530.61 × 2,282.06
4. Step 4: Simplify right side
   3,690.65x = 12,621,186.27
5. Step 5: Solve for x
   x = 12,621,186.27/3,690.65
6. Step 6: Final answer
   x = 3,419.77