Finding the Fourth Proportional to 1,632.81, 2,452.36 and 1,399.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.81 : 2,452.36 = 1,399.07 : x
2. Step 2: Convert to fraction form
   1,632.81/2,452.36 = 1,399.07/x
3. Step 3: Cross multiply
   1,632.81x = 2,452.36 × 1,399.07
4. Step 4: Simplify right side
   1,632.81x = 3,431,035.89
5. Step 5: Solve for x
   x = 3,431,035.89/1,632.81
6. Step 6: Final answer
   x = 2,101.31