Finding the Fourth Proportional to 1,020.89, 1,523.94 and 944.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020.89 : 1,523.94 = 944.75 : x
2. Step 2: Convert to fraction form
   1,020.89/1,523.94 = 944.75/x
3. Step 3: Cross multiply
   1,020.89x = 1,523.94 × 944.75
4. Step 4: Simplify right side
   1,020.89x = 1,439,742.32
5. Step 5: Solve for x
   x = 1,439,742.32/1,020.89
6. Step 6: Final answer
   x = 1,410.28