Finding the Fourth Proportional to 1,154.27, 1,592.89 and 630.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,154.27 : 1,592.89 = 630.31 : x
2. Step 2: Convert to fraction form
   1,154.27/1,592.89 = 630.31/x
3. Step 3: Cross multiply
   1,154.27x = 1,592.89 × 630.31
4. Step 4: Simplify right side
   1,154.27x = 1,004,008.94
5. Step 5: Solve for x
   x = 1,004,008.94/1,154.27
6. Step 6: Final answer
   x = 869.82