Finding the Fourth Proportional to 1,410.21, 1,945.42 and 886.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.21 : 1,945.42 = 886.14 : x
2. Step 2: Convert to fraction form
   1,410.21/1,945.42 = 886.14/x
3. Step 3: Cross multiply
   1,410.21x = 1,945.42 × 886.14
4. Step 4: Simplify right side
   1,410.21x = 1,723,912.26
5. Step 5: Solve for x
   x = 1,723,912.26/1,410.21
6. Step 6: Final answer
   x = 1,222.45