Finding the Fourth Proportional to 2,217.34, 3,059.56 and 1,421.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.34 : 3,059.56 = 1,421.37 : x
2. Step 2: Convert to fraction form
   2,217.34/3,059.56 = 1,421.37/x
3. Step 3: Cross multiply
   2,217.34x = 3,059.56 × 1,421.37
4. Step 4: Simplify right side
   2,217.34x = 4,348,766.80
5. Step 5: Solve for x
   x = 4,348,766.80/2,217.34
6. Step 6: Final answer
   x = 1,961.25