Finding the Fourth Proportional to 2,162.42, 3,238.59 and 1,673.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.42 : 3,238.59 = 1,673.90 : x
2. Step 2: Convert to fraction form
   2,162.42/3,238.59 = 1,673.90/x
3. Step 3: Cross multiply
   2,162.42x = 3,238.59 × 1,673.90
4. Step 4: Simplify right side
   2,162.42x = 5,421,075.80
5. Step 5: Solve for x
   x = 5,421,075.80/2,162.42
6. Step 6: Final answer
   x = 2,506.95