Finding the Fourth Proportional to 2,112.93, 3,164.77 and 1,071.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.93 : 3,164.77 = 1,071.14 : x
2. Step 2: Convert to fraction form
   2,112.93/3,164.77 = 1,071.14/x
3. Step 3: Cross multiply
   2,112.93x = 3,164.77 × 1,071.14
4. Step 4: Simplify right side
   2,112.93x = 3,389,890.56
5. Step 5: Solve for x
   x = 3,389,890.56/2,112.93
6. Step 6: Final answer
   x = 1,604.36