Finding the Fourth Proportional to 1,191.59, 1,786.94 and 358.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.59 : 1,786.94 = 358.37 : x
2. Step 2: Convert to fraction form
   1,191.59/1,786.94 = 358.37/x
3. Step 3: Cross multiply
   1,191.59x = 1,786.94 × 358.37
4. Step 4: Simplify right side
   1,191.59x = 640,385.69
5. Step 5: Solve for x
   x = 640,385.69/1,191.59
6. Step 6: Final answer
   x = 537.42