Finding the Fourth Proportional to 2,011.51, 3,003.50 and 1,801.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.51 : 3,003.50 = 1,801.92 : x
2. Step 2: Convert to fraction form
   2,011.51/3,003.50 = 1,801.92/x
3. Step 3: Cross multiply
   2,011.51x = 3,003.50 × 1,801.92
4. Step 4: Simplify right side
   2,011.51x = 5,412,067.85
5. Step 5: Solve for x
   x = 5,412,067.85/2,011.51
6. Step 6: Final answer
   x = 2,690.55