Finding the Fourth Proportional to 3,269.62, 4,902.89 and 1,188.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,269.62 : 4,902.89 = 1,188.15 : x
2. Step 2: Convert to fraction form
   3,269.62/4,902.89 = 1,188.15/x
3. Step 3: Cross multiply
   3,269.62x = 4,902.89 × 1,188.15
4. Step 4: Simplify right side
   3,269.62x = 5,825,387.88
5. Step 5: Solve for x
   x = 5,825,387.88/3,269.62
6. Step 6: Final answer
   x = 1,781.67