Finding the Fourth Proportional to 2,455.99, 3,684.89 and 1,140.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,455.99 : 3,684.89 = 1,140.38 : x
2. Step 2: Convert to fraction form
   2,455.99/3,684.89 = 1,140.38/x
3. Step 3: Cross multiply
   2,455.99x = 3,684.89 × 1,140.38
4. Step 4: Simplify right side
   2,455.99x = 4,202,173.10
5. Step 5: Solve for x
   x = 4,202,173.10/2,455.99
6. Step 6: Final answer
   x = 1,710.99