Finding the Fourth Proportional to 2,548.45, 3,517.11 and 1,429.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,548.45 : 3,517.11 = 1,429.39 : x
2. Step 2: Convert to fraction form
   2,548.45/3,517.11 = 1,429.39/x
3. Step 3: Cross multiply
   2,548.45x = 3,517.11 × 1,429.39
4. Step 4: Simplify right side
   2,548.45x = 5,027,321.86
5. Step 5: Solve for x
   x = 5,027,321.86/2,548.45
6. Step 6: Final answer
   x = 1,972.70