Finding the Fourth Proportional to 2,602.70, 3,591.69 and 1,423.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.70 : 3,591.69 = 1,423.77 : x
2. Step 2: Convert to fraction form
   2,602.70/3,591.69 = 1,423.77/x
3. Step 3: Cross multiply
   2,602.70x = 3,591.69 × 1,423.77
4. Step 4: Simplify right side
   2,602.70x = 5,113,740.47
5. Step 5: Solve for x
   x = 5,113,740.47/2,602.70
6. Step 6: Final answer
   x = 1,964.79