Finding the Fourth Proportional to 1,154.79, 1,593.61 and 630.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,154.79 : 1,593.61 = 630.83 : x
2. Step 2: Convert to fraction form
   1,154.79/1,593.61 = 630.83/x
3. Step 3: Cross multiply
   1,154.79x = 1,593.61 × 630.83
4. Step 4: Simplify right side
   1,154.79x = 1,005,287.45
5. Step 5: Solve for x
   x = 1,005,287.45/1,154.79
6. Step 6: Final answer
   x = 870.54