Finding the Fourth Proportional to 1,153.42, 1,591.78 and 760.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.42 : 1,591.78 = 760.16 : x
2. Step 2: Convert to fraction form
   1,153.42/1,591.78 = 760.16/x
3. Step 3: Cross multiply
   1,153.42x = 1,591.78 × 760.16
4. Step 4: Simplify right side
   1,153.42x = 1,210,007.48
5. Step 5: Solve for x
   x = 1,210,007.48/1,153.42
6. Step 6: Final answer
   x = 1,049.06