Finding the Fourth Proportional to 1,461.57, 2,016.96 and 872.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,461.57 : 2,016.96 = 872.07 : x
2. Step 2: Convert to fraction form
   1,461.57/2,016.96 = 872.07/x
3. Step 3: Cross multiply
   1,461.57x = 2,016.96 × 872.07
4. Step 4: Simplify right side
   1,461.57x = 1,758,930.31
5. Step 5: Solve for x
   x = 1,758,930.31/1,461.57
6. Step 6: Final answer
   x = 1,203.45