Finding the Fourth Proportional to 1,641.75, 2,262.91 and 1,162.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.75 : 2,262.91 = 1,162.59 : x
2. Step 2: Convert to fraction form
   1,641.75/2,262.91 = 1,162.59/x
3. Step 3: Cross multiply
   1,641.75x = 2,262.91 × 1,162.59
4. Step 4: Simplify right side
   1,641.75x = 2,630,836.54
5. Step 5: Solve for x
   x = 2,630,836.54/1,641.75
6. Step 6: Final answer
   x = 1,602.46