Finding the Fourth Proportional to 1,997.00, 2,987.99 and 1,381.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.00 : 2,987.99 = 1,381.91 : x
2. Step 2: Convert to fraction form
   1,997.00/2,987.99 = 1,381.91/x
3. Step 3: Cross multiply
   1,997.00x = 2,987.99 × 1,381.91
4. Step 4: Simplify right side
   1,997.00x = 4,129,133.40
5. Step 5: Solve for x
   x = 4,129,133.40/1,997.00
6. Step 6: Final answer
   x = 2,067.66