Finding the Fourth Proportional to 1,498.64, 2,067.88 and 877.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.64 : 2,067.88 = 877.68 : x
2. Step 2: Convert to fraction form
   1,498.64/2,067.88 = 877.68/x
3. Step 3: Cross multiply
   1,498.64x = 2,067.88 × 877.68
4. Step 4: Simplify right side
   1,498.64x = 1,814,936.92
5. Step 5: Solve for x
   x = 1,814,936.92/1,498.64
6. Step 6: Final answer
   x = 1,211.06