Finding the Fourth Proportional to 2,114.30, 3,167.97 and 1,290.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.30 : 3,167.97 = 1,290.10 : x
2. Step 2: Convert to fraction form
   2,114.30/3,167.97 = 1,290.10/x
3. Step 3: Cross multiply
   2,114.30x = 3,167.97 × 1,290.10
4. Step 4: Simplify right side
   2,114.30x = 4,086,998.10
5. Step 5: Solve for x
   x = 4,086,998.10/2,114.30
6. Step 6: Final answer
   x = 1,933.03