Finding the Fourth Proportional to 3,618.12, 5,423.52 and 1,766.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618.12 : 5,423.52 = 1,766.52 : x
2. Step 2: Convert to fraction form
   3,618.12/5,423.52 = 1,766.52/x
3. Step 3: Cross multiply
   3,618.12x = 5,423.52 × 1,766.52
4. Step 4: Simplify right side
   3,618.12x = 9,580,756.55
5. Step 5: Solve for x
   x = 9,580,756.55/3,618.12
6. Step 6: Final answer
   x = 2,647.99