Finding the Fourth Proportional to 1,674.38, 2,520.36 and 1,423.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.38 : 2,520.36 = 1,423.82 : x
2. Step 2: Convert to fraction form
   1,674.38/2,520.36 = 1,423.82/x
3. Step 3: Cross multiply
   1,674.38x = 2,520.36 × 1,423.82
4. Step 4: Simplify right side
   1,674.38x = 3,588,538.98
5. Step 5: Solve for x
   x = 3,588,538.98/1,674.38
6. Step 6: Final answer
   x = 2,143.20