Finding the Fourth Proportional to 2,072.09, 3,109.14 and 976.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.09 : 3,109.14 = 976.52 : x
2. Step 2: Convert to fraction form
   2,072.09/3,109.14 = 976.52/x
3. Step 3: Cross multiply
   2,072.09x = 3,109.14 × 976.52
4. Step 4: Simplify right side
   2,072.09x = 3,036,137.39
5. Step 5: Solve for x
   x = 3,036,137.39/2,072.09
6. Step 6: Final answer
   x = 1,465.25