Finding the Fourth Proportional to 2,321.89, 3,484.56 and 1,445.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321.89 : 3,484.56 = 1,445.67 : x
2. Step 2: Convert to fraction form
   2,321.89/3,484.56 = 1,445.67/x
3. Step 3: Cross multiply
   2,321.89x = 3,484.56 × 1,445.67
4. Step 4: Simplify right side
   2,321.89x = 5,037,523.86
5. Step 5: Solve for x
   x = 5,037,523.86/2,321.89
6. Step 6: Final answer
   x = 2,169.58