Finding the Fourth Proportional to 2,477.31, 3,418.79 and 1,429.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.31 : 3,418.79 = 1,429.38 : x
2. Step 2: Convert to fraction form
   2,477.31/3,418.79 = 1,429.38/x
3. Step 3: Cross multiply
   2,477.31x = 3,418.79 × 1,429.38
4. Step 4: Simplify right side
   2,477.31x = 4,886,750.05
5. Step 5: Solve for x
   x = 4,886,750.05/2,477.31
6. Step 6: Final answer
   x = 1,972.60