Finding the Fourth Proportional to 2,210.67, 3,050.77 and 1,216.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210.67 : 3,050.77 = 1,216.01 : x
2. Step 2: Convert to fraction form
   2,210.67/3,050.77 = 1,216.01/x
3. Step 3: Cross multiply
   2,210.67x = 3,050.77 × 1,216.01
4. Step 4: Simplify right side
   2,210.67x = 3,709,766.83
5. Step 5: Solve for x
   x = 3,709,766.83/2,210.67
6. Step 6: Final answer
   x = 1,678.12