Finding the Fourth Proportional to 7,114.12, 10,671.72 and 1,920.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,114.12 : 10,671.72 = 1,920.04 : x
2. Step 2: Convert to fraction form
   7,114.12/10,671.72 = 1,920.04/x
3. Step 3: Cross multiply
   7,114.12x = 10,671.72 × 1,920.04
4. Step 4: Simplify right side
   7,114.12x = 20,490,129.27
5. Step 5: Solve for x
   x = 20,490,129.27/7,114.12
6. Step 6: Final answer
   x = 2,880.21