Finding the Fourth Proportional to 1,153.98, 1,592.41 and 681.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.98 : 1,592.41 = 681.84 : x
2. Step 2: Convert to fraction form
   1,153.98/1,592.41 = 681.84/x
3. Step 3: Cross multiply
   1,153.98x = 1,592.41 × 681.84
4. Step 4: Simplify right side
   1,153.98x = 1,085,772.89
5. Step 5: Solve for x
   x = 1,085,772.89/1,153.98
6. Step 6: Final answer
   x = 940.89