Finding the Fourth Proportional to 1,168.50, 1,753.14 and 1,078.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.50 : 1,753.14 = 1,078.62 : x
2. Step 2: Convert to fraction form
   1,168.50/1,753.14 = 1,078.62/x
3. Step 3: Cross multiply
   1,168.50x = 1,753.14 × 1,078.62
4. Step 4: Simplify right side
   1,168.50x = 1,890,971.87
5. Step 5: Solve for x
   x = 1,890,971.87/1,168.50
6. Step 6: Final answer
   x = 1,618.29