Finding the Fourth Proportional to 2,606.88, 3,597.54 and 1,428

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.88 : 3,597.54 = 1,428 : x
2. Step 2: Convert to fraction form
   2,606.88/3,597.54 = 1,428/x
3. Step 3: Cross multiply
   2,606.88x = 3,597.54 × 1,428
4. Step 4: Simplify right side
   2,606.88x = 5,137,287.12
5. Step 5: Solve for x
   x = 5,137,287.12/2,606.88
6. Step 6: Final answer
   x = 1,970.66