Finding the Fourth Proportional to 2,634.32, 3,945.71 and 1,316.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,634.32 : 3,945.71 = 1,316.05 : x
2. Step 2: Convert to fraction form
   2,634.32/3,945.71 = 1,316.05/x
3. Step 3: Cross multiply
   2,634.32x = 3,945.71 × 1,316.05
4. Step 4: Simplify right side
   2,634.32x = 5,192,745.07
5. Step 5: Solve for x
   x = 5,192,745.07/2,634.32
6. Step 6: Final answer
   x = 1,971.19