Finding the Fourth Proportional to 1,154.18, 1,592.78 and 630.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,154.18 : 1,592.78 = 630.22 : x
2. Step 2: Convert to fraction form
   1,154.18/1,592.78 = 630.22/x
3. Step 3: Cross multiply
   1,154.18x = 1,592.78 × 630.22
4. Step 4: Simplify right side
   1,154.18x = 1,003,801.81
5. Step 5: Solve for x
   x = 1,003,801.81/1,154.18
6. Step 6: Final answer
   x = 869.71