Finding the Fourth Proportional to 2,488.58, 3,433.61 and 1,603.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.58 : 3,433.61 = 1,603.31 : x
2. Step 2: Convert to fraction form
   2,488.58/3,433.61 = 1,603.31/x
3. Step 3: Cross multiply
   2,488.58x = 3,433.61 × 1,603.31
4. Step 4: Simplify right side
   2,488.58x = 5,505,153.84
5. Step 5: Solve for x
   x = 5,505,153.84/2,488.58
6. Step 6: Final answer
   x = 2,212.17