Finding the Fourth Proportional to 2,391.61, 3,300.50 and 1,447.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.61 : 3,300.50 = 1,447.58 : x
2. Step 2: Convert to fraction form
   2,391.61/3,300.50 = 1,447.58/x
3. Step 3: Cross multiply
   2,391.61x = 3,300.50 × 1,447.58
4. Step 4: Simplify right side
   2,391.61x = 4,777,714.05
5. Step 5: Solve for x
   x = 4,777,714.05/2,391.61
6. Step 6: Final answer
   x = 1,997.70