Finding the Fourth Proportional to 2,230.72, 3,346.24 and 1,137.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,230.72 : 3,346.24 = 1,137.28 : x
2. Step 2: Convert to fraction form
   2,230.72/3,346.24 = 1,137.28/x
3. Step 3: Cross multiply
   2,230.72x = 3,346.24 × 1,137.28
4. Step 4: Simplify right side
   2,230.72x = 3,805,611.83
5. Step 5: Solve for x
   x = 3,805,611.83/2,230.72
6. Step 6: Final answer
   x = 1,706.00