Finding the Fourth Proportional to 1,272.51, 1,755.36 and 1,036.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272.51 : 1,755.36 = 1,036.71 : x
2. Step 2: Convert to fraction form
   1,272.51/1,755.36 = 1,036.71/x
3. Step 3: Cross multiply
   1,272.51x = 1,755.36 × 1,036.71
4. Step 4: Simplify right side
   1,272.51x = 1,819,799.27
5. Step 5: Solve for x
   x = 1,819,799.27/1,272.51
6. Step 6: Final answer
   x = 1,430.09