Finding the Fourth Proportional to 2,889.57, 3,986.37 and 1,894.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,889.57 : 3,986.37 = 1,894.62 : x
2. Step 2: Convert to fraction form
   2,889.57/3,986.37 = 1,894.62/x
3. Step 3: Cross multiply
   2,889.57x = 3,986.37 × 1,894.62
4. Step 4: Simplify right side
   2,889.57x = 7,552,656.33
5. Step 5: Solve for x
   x = 7,552,656.33/2,889.57
6. Step 6: Final answer
   x = 2,613.76