Finding the Fourth Proportional to 3,530.61, 5,291.89 and 1,447.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,530.61 : 5,291.89 = 1,447.94 : x
2. Step 2: Convert to fraction form
   3,530.61/5,291.89 = 1,447.94/x
3. Step 3: Cross multiply
   3,530.61x = 5,291.89 × 1,447.94
4. Step 4: Simplify right side
   3,530.61x = 7,662,348.82
5. Step 5: Solve for x
   x = 7,662,348.82/3,530.61
6. Step 6: Final answer
   x = 2,170.26