Finding the Fourth Proportional to 1,859.43, 2,553.34 and 1,662.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,859.43 : 2,553.34 = 1,662.87 : x
2. Step 2: Convert to fraction form
   1,859.43/2,553.34 = 1,662.87/x
3. Step 3: Cross multiply
   1,859.43x = 2,553.34 × 1,662.87
4. Step 4: Simplify right side
   1,859.43x = 4,245,868.33
5. Step 5: Solve for x
   x = 4,245,868.33/1,859.43
6. Step 6: Final answer
   x = 2,283.42