Finding the Fourth Proportional to 3,168.12, 4,748.89 and 1,192.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,168.12 : 4,748.89 = 1,192.40 : x
2. Step 2: Convert to fraction form
   3,168.12/4,748.89 = 1,192.40/x
3. Step 3: Cross multiply
   3,168.12x = 4,748.89 × 1,192.40
4. Step 4: Simplify right side
   3,168.12x = 5,662,553.04
5. Step 5: Solve for x
   x = 5,662,553.04/3,168.12
6. Step 6: Final answer
   x = 1,787.35