Finding the Fourth Proportional to 1,719.57, 2,580.41 and 1,580.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.57 : 2,580.41 = 1,580.16 : x
2. Step 2: Convert to fraction form
   1,719.57/2,580.41 = 1,580.16/x
3. Step 3: Cross multiply
   1,719.57x = 2,580.41 × 1,580.16
4. Step 4: Simplify right side
   1,719.57x = 4,077,460.67
5. Step 5: Solve for x
   x = 4,077,460.67/1,719.57
6. Step 6: Final answer
   x = 2,371.21