Finding the Fourth Proportional to 2,074.82, 3,112.39 and 614.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.82 : 3,112.39 = 614.05 : x
2. Step 2: Convert to fraction form
   2,074.82/3,112.39 = 614.05/x
3. Step 3: Cross multiply
   2,074.82x = 3,112.39 × 614.05
4. Step 4: Simplify right side
   2,074.82x = 1,911,156.07
5. Step 5: Solve for x
   x = 1,911,156.07/2,074.82
6. Step 6: Final answer
   x = 921.12