Finding the Fourth Proportional to 1,502.72, 2,243.24 and 1,435.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.72 : 2,243.24 = 1,435.32 : x
2. Step 2: Convert to fraction form
   1,502.72/2,243.24 = 1,435.32/x
3. Step 3: Cross multiply
   1,502.72x = 2,243.24 × 1,435.32
4. Step 4: Simplify right side
   1,502.72x = 3,219,760.06
5. Step 5: Solve for x
   x = 3,219,760.06/1,502.72
6. Step 6: Final answer
   x = 2,142.63