Finding the Fourth Proportional to 1,154.40, 1,593.06 and 630.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,154.40 : 1,593.06 = 630.42 : x
2. Step 2: Convert to fraction form
   1,154.40/1,593.06 = 630.42/x
3. Step 3: Cross multiply
   1,154.40x = 1,593.06 × 630.42
4. Step 4: Simplify right side
   1,154.40x = 1,004,296.89
5. Step 5: Solve for x
   x = 1,004,296.89/1,154.40
6. Step 6: Final answer
   x = 869.97