Finding the Fourth Proportional to 2,602.55, 3,591.54 and 1,423.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.55 : 3,591.54 = 1,423.63 : x
2. Step 2: Convert to fraction form
   2,602.55/3,591.54 = 1,423.63/x
3. Step 3: Cross multiply
   2,602.55x = 3,591.54 × 1,423.63
4. Step 4: Simplify right side
   2,602.55x = 5,113,028.58
5. Step 5: Solve for x
   x = 5,113,028.58/2,602.55
6. Step 6: Final answer
   x = 1,964.62