Finding the Fourth Proportional to 2,616.80, 3,918.72 and 1,460.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.80 : 3,918.72 = 1,460.12 : x
2. Step 2: Convert to fraction form
   2,616.80/3,918.72 = 1,460.12/x
3. Step 3: Cross multiply
   2,616.80x = 3,918.72 × 1,460.12
4. Step 4: Simplify right side
   2,616.80x = 5,721,801.45
5. Step 5: Solve for x
   x = 5,721,801.45/2,616.80
6. Step 6: Final answer
   x = 2,186.56