Finding the Fourth Proportional to 1,853.36, 2,558.28 and 1,067.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,853.36 : 2,558.28 = 1,067.72 : x
2. Step 2: Convert to fraction form
   1,853.36/2,558.28 = 1,067.72/x
3. Step 3: Cross multiply
   1,853.36x = 2,558.28 × 1,067.72
4. Step 4: Simplify right side
   1,853.36x = 2,731,526.72
5. Step 5: Solve for x
   x = 2,731,526.72/1,853.36
6. Step 6: Final answer
   x = 1,473.82