Finding the Fourth Proportional to 1,719.40, 2,371.98 and 1,090.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,719.40 : 2,371.98 = 1,090.72 : x
2. Step 2: Convert to fraction form
   1,719.40/2,371.98 = 1,090.72/x
3. Step 3: Cross multiply
   1,719.40x = 2,371.98 × 1,090.72
4. Step 4: Simplify right side
   1,719.40x = 2,587,166.03
5. Step 5: Solve for x
   x = 2,587,166.03/1,719.40
6. Step 6: Final answer
   x = 1,504.69