Finding the Fourth Proportional to 1,800.72, 2,485.35 and 1,137.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800.72 : 2,485.35 = 1,137.24 : x
2. Step 2: Convert to fraction form
   1,800.72/2,485.35 = 1,137.24/x
3. Step 3: Cross multiply
   1,800.72x = 2,485.35 × 1,137.24
4. Step 4: Simplify right side
   1,800.72x = 2,826,439.43
5. Step 5: Solve for x
   x = 2,826,439.43/1,800.72
6. Step 6: Final answer
   x = 1,569.62