Finding the Fourth Proportional to 2,607.19, 3,597.95 and 1,428.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.19 : 3,597.95 = 1,428.23 : x
2. Step 2: Convert to fraction form
   2,607.19/3,597.95 = 1,428.23/x
3. Step 3: Cross multiply
   2,607.19x = 3,597.95 × 1,428.23
4. Step 4: Simplify right side
   2,607.19x = 5,138,712.69
5. Step 5: Solve for x
   x = 5,138,712.69/2,607.19
6. Step 6: Final answer
   x = 1,970.98