Finding the Fourth Proportional to 2,650.91, 3,977.49 and 1,418

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.91 : 3,977.49 = 1,418 : x
2. Step 2: Convert to fraction form
   2,650.91/3,977.49 = 1,418/x
3. Step 3: Cross multiply
   2,650.91x = 3,977.49 × 1,418
4. Step 4: Simplify right side
   2,650.91x = 5,640,080.82
5. Step 5: Solve for x
   x = 5,640,080.82/2,650.91
6. Step 6: Final answer
   x = 2,127.60