Finding the Fourth Proportional to 2,288.58, 3,435.30 and 1,423.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.58 : 3,435.30 = 1,423.50 : x
2. Step 2: Convert to fraction form
   2,288.58/3,435.30 = 1,423.50/x
3. Step 3: Cross multiply
   2,288.58x = 3,435.30 × 1,423.50
4. Step 4: Simplify right side
   2,288.58x = 4,890,149.55
5. Step 5: Solve for x
   x = 4,890,149.55/2,288.58
6. Step 6: Final answer
   x = 2,136.76