Finding the Fourth Proportional to 1,485.63, 2,048.31 and 1,204.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.63 : 2,048.31 = 1,204.83 : x
2. Step 2: Convert to fraction form
   1,485.63/2,048.31 = 1,204.83/x
3. Step 3: Cross multiply
   1,485.63x = 2,048.31 × 1,204.83
4. Step 4: Simplify right side
   1,485.63x = 2,467,865.34
5. Step 5: Solve for x
   x = 2,467,865.34/1,485.63
6. Step 6: Final answer
   x = 1,661.16