Finding the Fourth Proportional to 1,436.51, 2,151.54 and 1,249.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.51 : 2,151.54 = 1,249.01 : x
2. Step 2: Convert to fraction form
   1,436.51/2,151.54 = 1,249.01/x
3. Step 3: Cross multiply
   1,436.51x = 2,151.54 × 1,249.01
4. Step 4: Simplify right side
   1,436.51x = 2,687,284.22
5. Step 5: Solve for x
   x = 2,687,284.22/1,436.51
6. Step 6: Final answer
   x = 1,870.71