Finding the Fourth Proportional to 1,249.16, 1,725.72 and 1,064.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249.16 : 1,725.72 = 1,064.58 : x
2. Step 2: Convert to fraction form
   1,249.16/1,725.72 = 1,064.58/x
3. Step 3: Cross multiply
   1,249.16x = 1,725.72 × 1,064.58
4. Step 4: Simplify right side
   1,249.16x = 1,837,167.00
5. Step 5: Solve for x
   x = 1,837,167.00/1,249.16
6. Step 6: Final answer
   x = 1,470.72