Finding the Fourth Proportional to 3,530.45, 5,291.51 and 1,449.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,530.45 : 5,291.51 = 1,449.42 : x
2. Step 2: Convert to fraction form
   3,530.45/5,291.51 = 1,449.42/x
3. Step 3: Cross multiply
   3,530.45x = 5,291.51 × 1,449.42
4. Step 4: Simplify right side
   3,530.45x = 7,669,613.18
5. Step 5: Solve for x
   x = 7,669,613.18/3,530.45
6. Step 6: Final answer
   x = 2,172.42