Finding the Fourth Proportional to 2,602.28, 3,591.15 and 1,423.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.28 : 3,591.15 = 1,423.36 : x
2. Step 2: Convert to fraction form
   2,602.28/3,591.15 = 1,423.36/x
3. Step 3: Cross multiply
   2,602.28x = 3,591.15 × 1,423.36
4. Step 4: Simplify right side
   2,602.28x = 5,111,499.26
5. Step 5: Solve for x
   x = 5,111,499.26/2,602.28
6. Step 6: Final answer
   x = 1,964.24