Finding the Fourth Proportional to 3,451.34, 5,173.89 and 1,258.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,451.34 : 5,173.89 = 1,258.52 : x
2. Step 2: Convert to fraction form
   3,451.34/5,173.89 = 1,258.52/x
3. Step 3: Cross multiply
   3,451.34x = 5,173.89 × 1,258.52
4. Step 4: Simplify right side
   3,451.34x = 6,511,418.17
5. Step 5: Solve for x
   x = 6,511,418.17/3,451.34
6. Step 6: Final answer
   x = 1,886.64