Finding the Fourth Proportional to 1,800.63, 2,485.34 and 1,172.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,800.63 : 2,485.34 = 1,172.73 : x
2. Step 2: Convert to fraction form
   1,800.63/2,485.34 = 1,172.73/x
3. Step 3: Cross multiply
   1,800.63x = 2,485.34 × 1,172.73
4. Step 4: Simplify right side
   1,800.63x = 2,914,632.78
5. Step 5: Solve for x
   x = 2,914,632.78/1,800.63
6. Step 6: Final answer
   x = 1,618.67