Finding the Fourth Proportional to 2,602.42, 3,591.36 and 1,423.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.42 : 3,591.36 = 1,423.51 : x
2. Step 2: Convert to fraction form
   2,602.42/3,591.36 = 1,423.51/x
3. Step 3: Cross multiply
   2,602.42x = 3,591.36 × 1,423.51
4. Step 4: Simplify right side
   2,602.42x = 5,112,336.87
5. Step 5: Solve for x
   x = 5,112,336.87/2,602.42
6. Step 6: Final answer
   x = 1,964.45