Finding the Fourth Proportional to 2,355.10, 3,530.82 and 1,260.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.10 : 3,530.82 = 1,260.38 : x
2. Step 2: Convert to fraction form
   2,355.10/3,530.82 = 1,260.38/x
3. Step 3: Cross multiply
   2,355.10x = 3,530.82 × 1,260.38
4. Step 4: Simplify right side
   2,355.10x = 4,450,174.91
5. Step 5: Solve for x
   x = 4,450,174.91/2,355.10
6. Step 6: Final answer
   x = 1,889.59