Finding the Fourth Proportional to 1,020.47, 1,406.76 and 754.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020.47 : 1,406.76 = 754.52 : x
2. Step 2: Convert to fraction form
   1,020.47/1,406.76 = 754.52/x
3. Step 3: Cross multiply
   1,020.47x = 1,406.76 × 754.52
4. Step 4: Simplify right side
   1,020.47x = 1,061,428.56
5. Step 5: Solve for x
   x = 1,061,428.56/1,020.47
6. Step 6: Final answer
   x = 1,040.14