Finding the Fourth Proportional to 2,143.94, 3,214.89 and 1,047.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.94 : 3,214.89 = 1,047.03 : x
2. Step 2: Convert to fraction form
   2,143.94/3,214.89 = 1,047.03/x
3. Step 3: Cross multiply
   2,143.94x = 3,214.89 × 1,047.03
4. Step 4: Simplify right side
   2,143.94x = 3,366,074.22
5. Step 5: Solve for x
   x = 3,366,074.22/2,143.94
6. Step 6: Final answer
   x = 1,570.04