Finding the Fourth Proportional to 2,618.88, 3,613.94 and 1,423.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.88 : 3,613.94 = 1,423.82 : x
2. Step 2: Convert to fraction form
   2,618.88/3,613.94 = 1,423.82/x
3. Step 3: Cross multiply
   2,618.88x = 3,613.94 × 1,423.82
4. Step 4: Simplify right side
   2,618.88x = 5,145,600.05
5. Step 5: Solve for x
   x = 5,145,600.05/2,618.88
6. Step 6: Final answer
   x = 1,964.81