Finding the Fourth Proportional to 1,015.16, 1,402.52 and 756.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.16 : 1,402.52 = 756.48 : x
2. Step 2: Convert to fraction form
   1,015.16/1,402.52 = 756.48/x
3. Step 3: Cross multiply
   1,015.16x = 1,402.52 × 756.48
4. Step 4: Simplify right side
   1,015.16x = 1,060,978.33
5. Step 5: Solve for x
   x = 1,060,978.33/1,015.16
6. Step 6: Final answer
   x = 1,045.13