Finding the Fourth Proportional to 1,003.41, 1,504.59 and 541.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.41 : 1,504.59 = 541.29 : x
2. Step 2: Convert to fraction form
   1,003.41/1,504.59 = 541.29/x
3. Step 3: Cross multiply
   1,003.41x = 1,504.59 × 541.29
4. Step 4: Simplify right side
   1,003.41x = 814,419.52
5. Step 5: Solve for x
   x = 814,419.52/1,003.41
6. Step 6: Final answer
   x = 811.65