Finding the Fourth Proportional to 3,455.58, 5,185.38 and 1,264.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,455.58 : 5,185.38 = 1,264.52 : x
2. Step 2: Convert to fraction form
   3,455.58/5,185.38 = 1,264.52/x
3. Step 3: Cross multiply
   3,455.58x = 5,185.38 × 1,264.52
4. Step 4: Simplify right side
   3,455.58x = 6,557,016.72
5. Step 5: Solve for x
   x = 6,557,016.72/3,455.58
6. Step 6: Final answer
   x = 1,897.52