Finding the Fourth Proportional to 1,498.56, 2,067.72 and 909.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.56 : 2,067.72 = 909.36 : x
2. Step 2: Convert to fraction form
   1,498.56/2,067.72 = 909.36/x
3. Step 3: Cross multiply
   1,498.56x = 2,067.72 × 909.36
4. Step 4: Simplify right side
   1,498.56x = 1,880,301.86
5. Step 5: Solve for x
   x = 1,880,301.86/1,498.56
6. Step 6: Final answer
   x = 1,254.74