Finding the Fourth Proportional to 1,645.86, 2,469.60 and 1,162.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,645.86 : 2,469.60 = 1,162.02 : x
2. Step 2: Convert to fraction form
   1,645.86/2,469.60 = 1,162.02/x
3. Step 3: Cross multiply
   1,645.86x = 2,469.60 × 1,162.02
4. Step 4: Simplify right side
   1,645.86x = 2,869,724.59
5. Step 5: Solve for x
   x = 2,869,724.59/1,645.86
6. Step 6: Final answer
   x = 1,743.60