Finding the Fourth Proportional to 1,153.53, 1,592.00 and 681.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.53 : 1,592.00 = 681.57 : x
2. Step 2: Convert to fraction form
   1,153.53/1,592.00 = 681.57/x
3. Step 3: Cross multiply
   1,153.53x = 1,592.00 × 681.57
4. Step 4: Simplify right side
   1,153.53x = 1,085,056.03
5. Step 5: Solve for x
   x = 1,085,056.03/1,153.53
6. Step 6: Final answer
   x = 940.64