Finding the Fourth Proportional to 2,074.96, 3,112.12 and 1,208.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.96 : 3,112.12 = 1,208.40 : x
2. Step 2: Convert to fraction form
   2,074.96/3,112.12 = 1,208.40/x
3. Step 3: Cross multiply
   2,074.96x = 3,112.12 × 1,208.40
4. Step 4: Simplify right side
   2,074.96x = 3,760,685.81
5. Step 5: Solve for x
   x = 3,760,685.81/2,074.96
6. Step 6: Final answer
   x = 1,812.41