Finding the Fourth Proportional to 2,074.86, 3,112.74 and 614.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074.86 : 3,112.74 = 614.12 : x
2. Step 2: Convert to fraction form
   2,074.86/3,112.74 = 614.12/x
3. Step 3: Cross multiply
   2,074.86x = 3,112.74 × 614.12
4. Step 4: Simplify right side
   2,074.86x = 1,911,580.33
5. Step 5: Solve for x
   x = 1,911,580.33/2,074.86
6. Step 6: Final answer
   x = 921.31