Finding the Fourth Proportional to 1,273.30, 1,752.56 and 1,086.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,273.30 : 1,752.56 = 1,086.19 : x
2. Step 2: Convert to fraction form
   1,273.30/1,752.56 = 1,086.19/x
3. Step 3: Cross multiply
   1,273.30x = 1,752.56 × 1,086.19
4. Step 4: Simplify right side
   1,273.30x = 1,903,613.15
5. Step 5: Solve for x
   x = 1,903,613.15/1,273.30
6. Step 6: Final answer
   x = 1,495.02