Finding the Fourth Proportional to 2,580.34, 3,561.28 and 1,518.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.34 : 3,561.28 = 1,518.30 : x
2. Step 2: Convert to fraction form
   2,580.34/3,561.28 = 1,518.30/x
3. Step 3: Cross multiply
   2,580.34x = 3,561.28 × 1,518.30
4. Step 4: Simplify right side
   2,580.34x = 5,407,091.42
5. Step 5: Solve for x
   x = 5,407,091.42/2,580.34
6. Step 6: Final answer
   x = 2,095.50