Finding the Fourth Proportional to 2,511.72, 3,762.72 and 1,214.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,511.72 : 3,762.72 = 1,214.10 : x
2. Step 2: Convert to fraction form
   2,511.72/3,762.72 = 1,214.10/x
3. Step 3: Cross multiply
   2,511.72x = 3,762.72 × 1,214.10
4. Step 4: Simplify right side
   2,511.72x = 4,568,318.35
5. Step 5: Solve for x
   x = 4,568,318.35/2,511.72
6. Step 6: Final answer
   x = 1,818.80