Finding the Fourth Proportional to 1,498.64, 2,067.77 and 900.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.64 : 2,067.77 = 900.86 : x
2. Step 2: Convert to fraction form
   1,498.64/2,067.77 = 900.86/x
3. Step 3: Cross multiply
   1,498.64x = 2,067.77 × 900.86
4. Step 4: Simplify right side
   1,498.64x = 1,862,756.44
5. Step 5: Solve for x
   x = 1,862,756.44/1,498.64
6. Step 6: Final answer
   x = 1,242.97