Finding the Fourth Proportional to 2,005.91, 3,015.02 and 1,962.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005.91 : 3,015.02 = 1,962.86 : x
2. Step 2: Convert to fraction form
   2,005.91/3,015.02 = 1,962.86/x
3. Step 3: Cross multiply
   2,005.91x = 3,015.02 × 1,962.86
4. Step 4: Simplify right side
   2,005.91x = 5,918,060.47
5. Step 5: Solve for x
   x = 5,918,060.47/2,005.91
6. Step 6: Final answer
   x = 2,950.31