Finding the Fourth Proportional to 1,395.63, 2,096.71 and 1,316.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.63 : 2,096.71 = 1,316.82 : x
2. Step 2: Convert to fraction form
   1,395.63/2,096.71 = 1,316.82/x
3. Step 3: Cross multiply
   1,395.63x = 2,096.71 × 1,316.82
4. Step 4: Simplify right side
   1,395.63x = 2,760,972.59
5. Step 5: Solve for x
   x = 2,760,972.59/1,395.63
6. Step 6: Final answer
   x = 1,978.30