Finding the Fourth Proportional to 2,300.28, 3,174.10 and 1,355.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.28 : 3,174.10 = 1,355.85 : x
2. Step 2: Convert to fraction form
   2,300.28/3,174.10 = 1,355.85/x
3. Step 3: Cross multiply
   2,300.28x = 3,174.10 × 1,355.85
4. Step 4: Simplify right side
   2,300.28x = 4,303,603.49
5. Step 5: Solve for x
   x = 4,303,603.49/2,300.28
6. Step 6: Final answer
   x = 1,870.90