Finding the Fourth Proportional to 1,193.43, 1,788.18 and 1,147.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,193.43 : 1,788.18 = 1,147.86 : x
2. Step 2: Convert to fraction form
   1,193.43/1,788.18 = 1,147.86/x
3. Step 3: Cross multiply
   1,193.43x = 1,788.18 × 1,147.86
4. Step 4: Simplify right side
   1,193.43x = 2,052,584.77
5. Step 5: Solve for x
   x = 2,052,584.77/1,193.43
6. Step 6: Final answer
   x = 1,719.91