Finding the Fourth Proportional to 2,211.33, 3,051.61 and 1,216.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,211.33 : 3,051.61 = 1,216.62 : x
2. Step 2: Convert to fraction form
   2,211.33/3,051.61 = 1,216.62/x
3. Step 3: Cross multiply
   2,211.33x = 3,051.61 × 1,216.62
4. Step 4: Simplify right side
   2,211.33x = 3,712,649.76
5. Step 5: Solve for x
   x = 3,712,649.76/2,211.33
6. Step 6: Final answer
   x = 1,678.92