Finding the Fourth Proportional to 2,607.18, 3,597.93 and 1,428.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.18 : 3,597.93 = 1,428.36 : x
2. Step 2: Convert to fraction form
   2,607.18/3,597.93 = 1,428.36/x
3. Step 3: Cross multiply
   2,607.18x = 3,597.93 × 1,428.36
4. Step 4: Simplify right side
   2,607.18x = 5,139,139.29
5. Step 5: Solve for x
   x = 5,139,139.29/2,607.18
6. Step 6: Final answer
   x = 1,971.15