Finding the Fourth Proportional to 2,602.86, 3,591.79 and 1,423.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.86 : 3,591.79 = 1,423.70 : x
2. Step 2: Convert to fraction form
   2,602.86/3,591.79 = 1,423.70/x
3. Step 3: Cross multiply
   2,602.86x = 3,591.79 × 1,423.70
4. Step 4: Simplify right side
   2,602.86x = 5,113,631.42
5. Step 5: Solve for x
   x = 5,113,631.42/2,602.86
6. Step 6: Final answer
   x = 1,964.62