Finding the Fourth Proportional to 2,477.54, 3,418.67 and 1,429.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.54 : 3,418.67 = 1,429.61 : x
2. Step 2: Convert to fraction form
   2,477.54/3,418.67 = 1,429.61/x
3. Step 3: Cross multiply
   2,477.54x = 3,418.67 × 1,429.61
4. Step 4: Simplify right side
   2,477.54x = 4,887,351.30
5. Step 5: Solve for x
   x = 4,887,351.30/2,477.54
6. Step 6: Final answer
   x = 1,972.66