Finding the Fourth Proportional to 1,153.50, 1,592.01 and 681.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.50 : 1,592.01 = 681.54 : x
2. Step 2: Convert to fraction form
   1,153.50/1,592.01 = 681.54/x
3. Step 3: Cross multiply
   1,153.50x = 1,592.01 × 681.54
4. Step 4: Simplify right side
   1,153.50x = 1,085,018.50
5. Step 5: Solve for x
   x = 1,085,018.50/1,153.50
6. Step 6: Final answer
   x = 940.63