Finding the Fourth Proportional to 2,488.95, 3,434.13 and 1,603.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.95 : 3,434.13 = 1,603.69 : x
2. Step 2: Convert to fraction form
   2,488.95/3,434.13 = 1,603.69/x
3. Step 3: Cross multiply
   2,488.95x = 3,434.13 × 1,603.69
4. Step 4: Simplify right side
   2,488.95x = 5,507,271.35
5. Step 5: Solve for x
   x = 5,507,271.35/2,488.95
6. Step 6: Final answer
   x = 2,212.69