Finding the Fourth Proportional to 2,211.31, 3,314.37 and 1,419.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,211.31 : 3,314.37 = 1,419.64 : x
2. Step 2: Convert to fraction form
   2,211.31/3,314.37 = 1,419.64/x
3. Step 3: Cross multiply
   2,211.31x = 3,314.37 × 1,419.64
4. Step 4: Simplify right side
   2,211.31x = 4,705,216.43
5. Step 5: Solve for x
   x = 4,705,216.43/2,211.31
6. Step 6: Final answer
   x = 2,127.80