Finding the Fourth Proportional to 1,632.05, 2,448.42 and 765.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.05 : 2,448.42 = 765.89 : x
2. Step 2: Convert to fraction form
   1,632.05/2,448.42 = 765.89/x
3. Step 3: Cross multiply
   1,632.05x = 2,448.42 × 765.89
4. Step 4: Simplify right side
   1,632.05x = 1,875,220.39
5. Step 5: Solve for x
   x = 1,875,220.39/1,632.05
6. Step 6: Final answer
   x = 1,149.00