Finding the Fourth Proportional to 1,054.82, 1,578.78 and 953.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.82 : 1,578.78 = 953.77 : x
2. Step 2: Convert to fraction form
   1,054.82/1,578.78 = 953.77/x
3. Step 3: Cross multiply
   1,054.82x = 1,578.78 × 953.77
4. Step 4: Simplify right side
   1,054.82x = 1,505,793.00
5. Step 5: Solve for x
   x = 1,505,793.00/1,054.82
6. Step 6: Final answer
   x = 1,427.54