Finding the Fourth Proportional to 2,012.14, 3,012.76 and 1,317.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.14 : 3,012.76 = 1,317.07 : x
2. Step 2: Convert to fraction form
   2,012.14/3,012.76 = 1,317.07/x
3. Step 3: Cross multiply
   2,012.14x = 3,012.76 × 1,317.07
4. Step 4: Simplify right side
   2,012.14x = 3,968,015.81
5. Step 5: Solve for x
   x = 3,968,015.81/2,012.14
6. Step 6: Final answer
   x = 1,972.04