Finding the Fourth Proportional to 1,632.80, 2,450.81 and 1,171.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.80 : 2,450.81 = 1,171.10 : x
2. Step 2: Convert to fraction form
   1,632.80/2,450.81 = 1,171.10/x
3. Step 3: Cross multiply
   1,632.80x = 2,450.81 × 1,171.10
4. Step 4: Simplify right side
   1,632.80x = 2,870,134.26
5. Step 5: Solve for x
   x = 2,870,134.26/1,632.80
6. Step 6: Final answer
   x = 1,757.80