Finding the Fourth Proportional to 2,039.50, 2,815.23 and 1,418.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.50 : 2,815.23 = 1,418.86 : x
2. Step 2: Convert to fraction form
   2,039.50/2,815.23 = 1,418.86/x
3. Step 3: Cross multiply
   2,039.50x = 2,815.23 × 1,418.86
4. Step 4: Simplify right side
   2,039.50x = 3,994,417.24
5. Step 5: Solve for x
   x = 3,994,417.24/2,039.50
6. Step 6: Final answer
   x = 1,958.53