Finding the Fourth Proportional to 2,602.65, 3,591.69 and 1,423.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.65 : 3,591.69 = 1,423.74 : x
2. Step 2: Convert to fraction form
   2,602.65/3,591.69 = 1,423.74/x
3. Step 3: Cross multiply
   2,602.65x = 3,591.69 × 1,423.74
4. Step 4: Simplify right side
   2,602.65x = 5,113,632.72
5. Step 5: Solve for x
   x = 5,113,632.72/2,602.65
6. Step 6: Final answer
   x = 1,964.78