Finding the Fourth Proportional to 2,488.56, 3,434.20 and 1,369.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.56 : 3,434.20 = 1,369.58 : x
2. Step 2: Convert to fraction form
   2,488.56/3,434.20 = 1,369.58/x
3. Step 3: Cross multiply
   2,488.56x = 3,434.20 × 1,369.58
4. Step 4: Simplify right side
   2,488.56x = 4,703,391.04
5. Step 5: Solve for x
   x = 4,703,391.04/2,488.56
6. Step 6: Final answer
   x = 1,890.01