Finding the Fourth Proportional to 1,021.97, 1,410.83 and 757.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,021.97 : 1,410.83 = 757.10 : x
2. Step 2: Convert to fraction form
   1,021.97/1,410.83 = 757.10/x
3. Step 3: Cross multiply
   1,021.97x = 1,410.83 × 757.10
4. Step 4: Simplify right side
   1,021.97x = 1,068,128.55
5. Step 5: Solve for x
   x = 1,068,128.55/1,021.97
6. Step 6: Final answer
   x = 1,045.17