Finding the Fourth Proportional to 4,752.31, 7,128.57 and 1,632.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,752.31 : 7,128.57 = 1,632.31 : x
2. Step 2: Convert to fraction form
   4,752.31/7,128.57 = 1,632.31/x
3. Step 3: Cross multiply
   4,752.31x = 7,128.57 × 1,632.31
4. Step 4: Simplify right side
   4,752.31x = 11,636,036.10
5. Step 5: Solve for x
   x = 11,636,036.10/4,752.31
6. Step 6: Final answer
   x = 2,448.50