Finding the Fourth Proportional to 1,693.02, 2,336.67 and 1,228.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,693.02 : 2,336.67 = 1,228.62 : x
2. Step 2: Convert to fraction form
   1,693.02/2,336.67 = 1,228.62/x
3. Step 3: Cross multiply
   1,693.02x = 2,336.67 × 1,228.62
4. Step 4: Simplify right side
   1,693.02x = 2,870,879.50
5. Step 5: Solve for x
   x = 2,870,879.50/1,693.02
6. Step 6: Final answer
   x = 1,695.72