Finding the Fourth Proportional to 2,971.81, 4,455.89 and 1,326.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,971.81 : 4,455.89 = 1,326.09 : x
2. Step 2: Convert to fraction form
   2,971.81/4,455.89 = 1,326.09/x
3. Step 3: Cross multiply
   2,971.81x = 4,455.89 × 1,326.09
4. Step 4: Simplify right side
   2,971.81x = 5,908,933.68
5. Step 5: Solve for x
   x = 5,908,933.68/2,971.81
6. Step 6: Final answer
   x = 1,988.33