Finding the Fourth Proportional to 1,005.24, 1,511.52 and 925.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005.24 : 1,511.52 = 925.05 : x
2. Step 2: Convert to fraction form
   1,005.24/1,511.52 = 925.05/x
3. Step 3: Cross multiply
   1,005.24x = 1,511.52 × 925.05
4. Step 4: Simplify right side
   1,005.24x = 1,398,231.58
5. Step 5: Solve for x
   x = 1,398,231.58/1,005.24
6. Step 6: Final answer
   x = 1,390.94