Finding the Fourth Proportional to 1,891.43, 2,609.89 and 1,052.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891.43 : 2,609.89 = 1,052.14 : x
2. Step 2: Convert to fraction form
   1,891.43/2,609.89 = 1,052.14/x
3. Step 3: Cross multiply
   1,891.43x = 2,609.89 × 1,052.14
4. Step 4: Simplify right side
   1,891.43x = 2,745,975.70
5. Step 5: Solve for x
   x = 2,745,975.70/1,891.43
6. Step 6: Final answer
   x = 1,451.80