Finding the Fourth Proportional to 1,215.72, 1,813.67 and 1,182.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215.72 : 1,813.67 = 1,182.24 : x
2. Step 2: Convert to fraction form
   1,215.72/1,813.67 = 1,182.24/x
3. Step 3: Cross multiply
   1,215.72x = 1,813.67 × 1,182.24
4. Step 4: Simplify right side
   1,215.72x = 2,144,187.31
5. Step 5: Solve for x
   x = 2,144,187.31/1,215.72
6. Step 6: Final answer
   x = 1,763.72