Finding the Fourth Proportional to 1,287.82, 1,930.04 and 594.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287.82 : 1,930.04 = 594.39 : x
2. Step 2: Convert to fraction form
   1,287.82/1,930.04 = 594.39/x
3. Step 3: Cross multiply
   1,287.82x = 1,930.04 × 594.39
4. Step 4: Simplify right side
   1,287.82x = 1,147,196.48
5. Step 5: Solve for x
   x = 1,147,196.48/1,287.82
6. Step 6: Final answer
   x = 890.80