Finding the Fourth Proportional to 1,469.13, 2,025.59 and 1,188.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.13 : 2,025.59 = 1,188.33 : x
2. Step 2: Convert to fraction form
   1,469.13/2,025.59 = 1,188.33/x
3. Step 3: Cross multiply
   1,469.13x = 2,025.59 × 1,188.33
4. Step 4: Simplify right side
   1,469.13x = 2,407,063.42
5. Step 5: Solve for x
   x = 2,407,063.42/1,469.13
6. Step 6: Final answer
   x = 1,638.43