Finding the Fourth Proportional to 1,158.50, 1,736.54 and 541.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.50 : 1,736.54 = 541.69 : x
2. Step 2: Convert to fraction form
   1,158.50/1,736.54 = 541.69/x
3. Step 3: Cross multiply
   1,158.50x = 1,736.54 × 541.69
4. Step 4: Simplify right side
   1,158.50x = 940,661.33
5. Step 5: Solve for x
   x = 940,661.33/1,158.50
6. Step 6: Final answer
   x = 811.96