Finding the Fourth Proportional to 2,114.72, 3,167.80 and 1,073.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.72 : 3,167.80 = 1,073.28 : x
2. Step 2: Convert to fraction form
   2,114.72/3,167.80 = 1,073.28/x
3. Step 3: Cross multiply
   2,114.72x = 3,167.80 × 1,073.28
4. Step 4: Simplify right side
   2,114.72x = 3,399,936.38
5. Step 5: Solve for x
   x = 3,399,936.38/2,114.72
6. Step 6: Final answer
   x = 1,607.75