Finding the Fourth Proportional to 2,162.42, 2,980.71 and 1,637.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.42 : 2,980.71 = 1,637.54 : x
2. Step 2: Convert to fraction form
   2,162.42/2,980.71 = 1,637.54/x
3. Step 3: Cross multiply
   2,162.42x = 2,980.71 × 1,637.54
4. Step 4: Simplify right side
   2,162.42x = 4,881,031.85
5. Step 5: Solve for x
   x = 4,881,031.85/2,162.42
6. Step 6: Final answer
   x = 2,257.21