Finding the Fourth Proportional to 1,498.18, 2,067.66 and 877.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.18 : 2,067.66 = 877.18 : x
2. Step 2: Convert to fraction form
   1,498.18/2,067.66 = 877.18/x
3. Step 3: Cross multiply
   1,498.18x = 2,067.66 × 877.18
4. Step 4: Simplify right side
   1,498.18x = 1,813,710.00
5. Step 5: Solve for x
   x = 1,813,710.00/1,498.18
6. Step 6: Final answer
   x = 1,210.61