Finding the Fourth Proportional to 3,422.61, 5,132.55 and 1,449.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,422.61 : 5,132.55 = 1,449.15 : x
2. Step 2: Convert to fraction form
   3,422.61/5,132.55 = 1,449.15/x
3. Step 3: Cross multiply
   3,422.61x = 5,132.55 × 1,449.15
4. Step 4: Simplify right side
   3,422.61x = 7,437,834.83
5. Step 5: Solve for x
   x = 7,437,834.83/3,422.61
6. Step 6: Final answer
   x = 2,173.15