Finding the Fourth Proportional to 1,428.05, 1,967.63 and 1,095.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428.05 : 1,967.63 = 1,095.41 : x
2. Step 2: Convert to fraction form
   1,428.05/1,967.63 = 1,095.41/x
3. Step 3: Cross multiply
   1,428.05x = 1,967.63 × 1,095.41
4. Step 4: Simplify right side
   1,428.05x = 2,155,361.02
5. Step 5: Solve for x
   x = 2,155,361.02/1,428.05
6. Step 6: Final answer
   x = 1,509.30