Finding the Fourth Proportional to 2,003.77, 3,005.18 and 543.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.77 : 3,005.18 = 543.04 : x
2. Step 2: Convert to fraction form
   2,003.77/3,005.18 = 543.04/x
3. Step 3: Cross multiply
   2,003.77x = 3,005.18 × 543.04
4. Step 4: Simplify right side
   2,003.77x = 1,631,922.72
5. Step 5: Solve for x
   x = 1,631,922.72/2,003.77
6. Step 6: Final answer
   x = 814.43