Finding the Fourth Proportional to 1,003.07, 1,384.22 and 548.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003.07 : 1,384.22 = 548.82 : x
2. Step 2: Convert to fraction form
   1,003.07/1,384.22 = 548.82/x
3. Step 3: Cross multiply
   1,003.07x = 1,384.22 × 548.82
4. Step 4: Simplify right side
   1,003.07x = 759,684.88
5. Step 5: Solve for x
   x = 759,684.88/1,003.07
6. Step 6: Final answer
   x = 757.36