Finding the Fourth Proportional to 1,928.94, 2,661.86 and 1,182.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,928.94 : 2,661.86 = 1,182.78 : x
2. Step 2: Convert to fraction form
   1,928.94/2,661.86 = 1,182.78/x
3. Step 3: Cross multiply
   1,928.94x = 2,661.86 × 1,182.78
4. Step 4: Simplify right side
   1,928.94x = 3,148,388.86
5. Step 5: Solve for x
   x = 3,148,388.86/1,928.94
6. Step 6: Final answer
   x = 1,632.19