Finding the Fourth Proportional to 2,113.33, 3,171.96 and 1,074.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113.33 : 3,171.96 = 1,074.07 : x
2. Step 2: Convert to fraction form
   2,113.33/3,171.96 = 1,074.07/x
3. Step 3: Cross multiply
   2,113.33x = 3,171.96 × 1,074.07
4. Step 4: Simplify right side
   2,113.33x = 3,406,907.08
5. Step 5: Solve for x
   x = 3,406,907.08/2,113.33
6. Step 6: Final answer
   x = 1,612.10