Finding the Fourth Proportional to 1,614.72, 2,423.28 and 627.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,614.72 : 2,423.28 = 627.69 : x
2. Step 2: Convert to fraction form
   1,614.72/2,423.28 = 627.69/x
3. Step 3: Cross multiply
   1,614.72x = 2,423.28 × 627.69
4. Step 4: Simplify right side
   1,614.72x = 1,521,068.62
5. Step 5: Solve for x
   x = 1,521,068.62/1,614.72
6. Step 6: Final answer
   x = 942.00