Finding the Fourth Proportional to 2,606.97, 3,597.71 and 1,428.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.97 : 3,597.71 = 1,428.03 : x
2. Step 2: Convert to fraction form
   2,606.97/3,597.71 = 1,428.03/x
3. Step 3: Cross multiply
   2,606.97x = 3,597.71 × 1,428.03
4. Step 4: Simplify right side
   2,606.97x = 5,137,637.81
5. Step 5: Solve for x
   x = 5,137,637.81/2,606.97
6. Step 6: Final answer
   x = 1,970.73