Finding the Fourth Proportional to 4,131.72, 6,198.46 and 1,210.12

Step by Step Solution

1. Step 1: Write the proportion equation
   4,131.72 : 6,198.46 = 1,210.12 : x
2. Step 2: Convert to fraction form
   4,131.72/6,198.46 = 1,210.12/x
3. Step 3: Cross multiply
   4,131.72x = 6,198.46 × 1,210.12
4. Step 4: Simplify right side
   4,131.72x = 7,500,880.42
5. Step 5: Solve for x
   x = 7,500,880.42/4,131.72
6. Step 6: Final answer
   x = 1,815.44