Finding the Fourth Proportional to 2,003.75, 3,005.27 and 542.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.75 : 3,005.27 = 542.56 : x
2. Step 2: Convert to fraction form
   2,003.75/3,005.27 = 542.56/x
3. Step 3: Cross multiply
   2,003.75x = 3,005.27 × 542.56
4. Step 4: Simplify right side
   2,003.75x = 1,630,533.13
5. Step 5: Solve for x
   x = 1,630,533.13/2,003.75
6. Step 6: Final answer
   x = 813.74