Finding the Fourth Proportional to 1,153.89, 1,592.38 and 629.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.89 : 1,592.38 = 629.92 : x
2. Step 2: Convert to fraction form
   1,153.89/1,592.38 = 629.92/x
3. Step 3: Cross multiply
   1,153.89x = 1,592.38 × 629.92
4. Step 4: Simplify right side
   1,153.89x = 1,003,072.01
5. Step 5: Solve for x
   x = 1,003,072.01/1,153.89
6. Step 6: Final answer
   x = 869.30