Finding the Fourth Proportional to 2,067.30, 3,102.49 and 972.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.30 : 3,102.49 = 972.43 : x
2. Step 2: Convert to fraction form
   2,067.30/3,102.49 = 972.43/x
3. Step 3: Cross multiply
   2,067.30x = 3,102.49 × 972.43
4. Step 4: Simplify right side
   2,067.30x = 3,016,955.17
5. Step 5: Solve for x
   x = 3,016,955.17/2,067.30
6. Step 6: Final answer
   x = 1,459.37