Finding the Fourth Proportional to 2,811.76, 4,219.52 and 1,168.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,811.76 : 4,219.52 = 1,168.30 : x
2. Step 2: Convert to fraction form
   2,811.76/4,219.52 = 1,168.30/x
3. Step 3: Cross multiply
   2,811.76x = 4,219.52 × 1,168.30
4. Step 4: Simplify right side
   2,811.76x = 4,929,665.22
5. Step 5: Solve for x
   x = 4,929,665.22/2,811.76
6. Step 6: Final answer
   x = 1,753.23