Finding the Fourth Proportional to 1,762.56, 2,431.35 and 1,637.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,762.56 : 2,431.35 = 1,637.42 : x
2. Step 2: Convert to fraction form
   1,762.56/2,431.35 = 1,637.42/x
3. Step 3: Cross multiply
   1,762.56x = 2,431.35 × 1,637.42
4. Step 4: Simplify right side
   1,762.56x = 3,981,128.96
5. Step 5: Solve for x
   x = 3,981,128.96/1,762.56
6. Step 6: Final answer
   x = 2,258.72