Finding the Fourth Proportional to 2,328.89, 3,213.08 and 1,581.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.89 : 3,213.08 = 1,581.55 : x
2. Step 2: Convert to fraction form
   2,328.89/3,213.08 = 1,581.55/x
3. Step 3: Cross multiply
   2,328.89x = 3,213.08 × 1,581.55
4. Step 4: Simplify right side
   2,328.89x = 5,081,654.64
5. Step 5: Solve for x
   x = 5,081,654.64/2,328.89
6. Step 6: Final answer
   x = 2,182.01