Finding the Fourth Proportional to 1,719.89, 2,580.86 and 1,193.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.89 : 2,580.86 = 1,193.21 : x
2. Step 2: Convert to fraction form
   1,719.89/2,580.86 = 1,193.21/x
3. Step 3: Cross multiply
   1,719.89x = 2,580.86 × 1,193.21
4. Step 4: Simplify right side
   1,719.89x = 3,079,507.96
5. Step 5: Solve for x
   x = 3,079,507.96/1,719.89
6. Step 6: Final answer
   x = 1,790.53