Finding the Fourth Proportional to 1,801.18, 2,485.47 and 1,004.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.18 : 2,485.47 = 1,004.47 : x
2. Step 2: Convert to fraction form
   1,801.18/2,485.47 = 1,004.47/x
3. Step 3: Cross multiply
   1,801.18x = 2,485.47 × 1,004.47
4. Step 4: Simplify right side
   1,801.18x = 2,496,580.05
5. Step 5: Solve for x
   x = 2,496,580.05/1,801.18
6. Step 6: Final answer
   x = 1,386.08