Finding the Fourth Proportional to 1,150.79, 1,725.52 and 786.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.79 : 1,725.52 = 786.02 : x
2. Step 2: Convert to fraction form
   1,150.79/1,725.52 = 786.02/x
3. Step 3: Cross multiply
   1,150.79x = 1,725.52 × 786.02
4. Step 4: Simplify right side
   1,150.79x = 1,356,293.23
5. Step 5: Solve for x
   x = 1,356,293.23/1,150.79
6. Step 6: Final answer
   x = 1,178.58