Finding the Fourth Proportional to 3,602.22, 4,969.72 and 2,421.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,602.22 : 4,969.72 = 2,421.42 : x
2. Step 2: Convert to fraction form
   3,602.22/4,969.72 = 2,421.42/x
3. Step 3: Cross multiply
   3,602.22x = 4,969.72 × 2,421.42
4. Step 4: Simplify right side
   3,602.22x = 12,033,779.40
5. Step 5: Solve for x
   x = 12,033,779.40/3,602.22
6. Step 6: Final answer
   x = 3,340.66