Finding the Fourth Proportional to 2,661.06, 3,987.93 and 1,359.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.06 : 3,987.93 = 1,359.81 : x
2. Step 2: Convert to fraction form
   2,661.06/3,987.93 = 1,359.81/x
3. Step 3: Cross multiply
   2,661.06x = 3,987.93 × 1,359.81
4. Step 4: Simplify right side
   2,661.06x = 5,422,827.09
5. Step 5: Solve for x
   x = 5,422,827.09/2,661.06
6. Step 6: Final answer
   x = 2,037.84