Finding the Fourth Proportional to 1,912.48, 2,865.29 and 1,160.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912.48 : 2,865.29 = 1,160.62 : x
2. Step 2: Convert to fraction form
   1,912.48/2,865.29 = 1,160.62/x
3. Step 3: Cross multiply
   1,912.48x = 2,865.29 × 1,160.62
4. Step 4: Simplify right side
   1,912.48x = 3,325,498.55
5. Step 5: Solve for x
   x = 3,325,498.55/1,912.48
6. Step 6: Final answer
   x = 1,738.85