Finding the Fourth Proportional to 2,284.43, 3,152.50 and 1,290.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.43 : 3,152.50 = 1,290.03 : x
2. Step 2: Convert to fraction form
   2,284.43/3,152.50 = 1,290.03/x
3. Step 3: Cross multiply
   2,284.43x = 3,152.50 × 1,290.03
4. Step 4: Simplify right side
   2,284.43x = 4,066,819.58
5. Step 5: Solve for x
   x = 4,066,819.58/2,284.43
6. Step 6: Final answer
   x = 1,780.23