Finding the Fourth Proportional to 1,249.04, 1,719.60 and 1,082.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249.04 : 1,719.60 = 1,082.72 : x
2. Step 2: Convert to fraction form
   1,249.04/1,719.60 = 1,082.72/x
3. Step 3: Cross multiply
   1,249.04x = 1,719.60 × 1,082.72
4. Step 4: Simplify right side
   1,249.04x = 1,861,845.31
5. Step 5: Solve for x
   x = 1,861,845.31/1,249.04
6. Step 6: Final answer
   x = 1,490.62