Finding the Fourth Proportional to 2,488.96, 3,434.85 and 1,369.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.96 : 3,434.85 = 1,369.98 : x
2. Step 2: Convert to fraction form
   2,488.96/3,434.85 = 1,369.98/x
3. Step 3: Cross multiply
   2,488.96x = 3,434.85 × 1,369.98
4. Step 4: Simplify right side
   2,488.96x = 4,705,675.80
5. Step 5: Solve for x
   x = 4,705,675.80/2,488.96
6. Step 6: Final answer
   x = 1,890.62