Finding the Fourth Proportional to 1,372.48, 1,895.84 and 1,022.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.48 : 1,895.84 = 1,022.56 : x
2. Step 2: Convert to fraction form
   1,372.48/1,895.84 = 1,022.56/x
3. Step 3: Cross multiply
   1,372.48x = 1,895.84 × 1,022.56
4. Step 4: Simplify right side
   1,372.48x = 1,938,610.15
5. Step 5: Solve for x
   x = 1,938,610.15/1,372.48
6. Step 6: Final answer
   x = 1,412.49