Finding the Fourth Proportional to 1,053.15, 1,452.55 and 773.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.15 : 1,452.55 = 773.29 : x
2. Step 2: Convert to fraction form
   1,053.15/1,452.55 = 773.29/x
3. Step 3: Cross multiply
   1,053.15x = 1,452.55 × 773.29
4. Step 4: Simplify right side
   1,053.15x = 1,123,242.39
5. Step 5: Solve for x
   x = 1,123,242.39/1,053.15
6. Step 6: Final answer
   x = 1,066.56