Finding the Fourth Proportional to 2,548.01, 3,516.53 and 1,428.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,548.01 : 3,516.53 = 1,428.99 : x
2. Step 2: Convert to fraction form
   2,548.01/3,516.53 = 1,428.99/x
3. Step 3: Cross multiply
   2,548.01x = 3,516.53 × 1,428.99
4. Step 4: Simplify right side
   2,548.01x = 5,025,079.06
5. Step 5: Solve for x
   x = 5,025,079.06/2,548.01
6. Step 6: Final answer
   x = 1,972.16