Finding the Fourth Proportional to 2,607.32, 3,597.97 and 1,428.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.32 : 3,597.97 = 1,428.17 : x
2. Step 2: Convert to fraction form
   2,607.32/3,597.97 = 1,428.17/x
3. Step 3: Cross multiply
   2,607.32x = 3,597.97 × 1,428.17
4. Step 4: Simplify right side
   2,607.32x = 5,138,512.81
5. Step 5: Solve for x
   x = 5,138,512.81/2,607.32
6. Step 6: Final answer
   x = 1,970.80