Finding the Fourth Proportional to 2,607.43, 3,598.17 and 1,428.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.43 : 3,598.17 = 1,428.49 : x
2. Step 2: Convert to fraction form
   2,607.43/3,598.17 = 1,428.49/x
3. Step 3: Cross multiply
   2,607.43x = 3,598.17 × 1,428.49
4. Step 4: Simplify right side
   2,607.43x = 5,139,949.86
5. Step 5: Solve for x
   x = 5,139,949.86/2,607.43
6. Step 6: Final answer
   x = 1,971.27