Finding the Fourth Proportional to 1,294.12, 1,788.42 and 1,150.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,294.12 : 1,788.42 = 1,150.12 : x
2. Step 2: Convert to fraction form
   1,294.12/1,788.42 = 1,150.12/x
3. Step 3: Cross multiply
   1,294.12x = 1,788.42 × 1,150.12
4. Step 4: Simplify right side
   1,294.12x = 2,056,897.61
5. Step 5: Solve for x
   x = 2,056,897.61/1,294.12
6. Step 6: Final answer
   x = 1,589.42