Finding the Fourth Proportional to 2,452.15, 3,679.80 and 1,357.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.15 : 3,679.80 = 1,357.30 : x
2. Step 2: Convert to fraction form
   2,452.15/3,679.80 = 1,357.30/x
3. Step 3: Cross multiply
   2,452.15x = 3,679.80 × 1,357.30
4. Step 4: Simplify right side
   2,452.15x = 4,994,592.54
5. Step 5: Solve for x
   x = 4,994,592.54/2,452.15
6. Step 6: Final answer
   x = 2,036.82