Finding the Fourth Proportional to 2,548.40, 3,516.73 and 1,429.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,548.40 : 3,516.73 = 1,429.43 : x
2. Step 2: Convert to fraction form
   2,548.40/3,516.73 = 1,429.43/x
3. Step 3: Cross multiply
   2,548.40x = 3,516.73 × 1,429.43
4. Step 4: Simplify right side
   2,548.40x = 5,026,898.21
5. Step 5: Solve for x
   x = 5,026,898.21/2,548.40
6. Step 6: Final answer
   x = 1,972.57