Finding the Fourth Proportional to 1,228.67, 1,841.82 and 788.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,228.67 : 1,841.82 = 788.69 : x
2. Step 2: Convert to fraction form
   1,228.67/1,841.82 = 788.69/x
3. Step 3: Cross multiply
   1,228.67x = 1,841.82 × 788.69
4. Step 4: Simplify right side
   1,228.67x = 1,452,625.02
5. Step 5: Solve for x
   x = 1,452,625.02/1,228.67
6. Step 6: Final answer
   x = 1,182.27