Finding the Fourth Proportional to 1,588.72, 2,370.72 and 1,425.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,588.72 : 2,370.72 = 1,425.28 : x
2. Step 2: Convert to fraction form
   1,588.72/2,370.72 = 1,425.28/x
3. Step 3: Cross multiply
   1,588.72x = 2,370.72 × 1,425.28
4. Step 4: Simplify right side
   1,588.72x = 3,378,939.80
5. Step 5: Solve for x
   x = 3,378,939.80/1,588.72
6. Step 6: Final answer
   x = 2,126.83