Finding the Fourth Proportional to 2,001.91, 2,761.90 and 1,162.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,001.91 : 2,761.90 = 1,162.51 : x
2. Step 2: Convert to fraction form
   2,001.91/2,761.90 = 1,162.51/x
3. Step 3: Cross multiply
   2,001.91x = 2,761.90 × 1,162.51
4. Step 4: Simplify right side
   2,001.91x = 3,210,736.37
5. Step 5: Solve for x
   x = 3,210,736.37/2,001.91
6. Step 6: Final answer
   x = 1,603.84