Finding the Fourth Proportional to 2,210.76, 3,050.84 and 1,216.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210.76 : 3,050.84 = 1,216.12 : x
2. Step 2: Convert to fraction form
   2,210.76/3,050.84 = 1,216.12/x
3. Step 3: Cross multiply
   2,210.76x = 3,050.84 × 1,216.12
4. Step 4: Simplify right side
   2,210.76x = 3,710,187.54
5. Step 5: Solve for x
   x = 3,710,187.54/2,210.76
6. Step 6: Final answer
   x = 1,678.24