Finding the Fourth Proportional to 1,368.71, 2,052.56 and 1,076.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.71 : 2,052.56 = 1,076.78 : x
2. Step 2: Convert to fraction form
   1,368.71/2,052.56 = 1,076.78/x
3. Step 3: Cross multiply
   1,368.71x = 2,052.56 × 1,076.78
4. Step 4: Simplify right side
   1,368.71x = 2,210,163.38
5. Step 5: Solve for x
   x = 2,210,163.38/1,368.71
6. Step 6: Final answer
   x = 1,614.78