Finding the Fourth Proportional to 1,007.52, 1,514.76 and 979.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007.52 : 1,514.76 = 979.86 : x
2. Step 2: Convert to fraction form
   1,007.52/1,514.76 = 979.86/x
3. Step 3: Cross multiply
   1,007.52x = 1,514.76 × 979.86
4. Step 4: Simplify right side
   1,007.52x = 1,484,252.73
5. Step 5: Solve for x
   x = 1,484,252.73/1,007.52
6. Step 6: Final answer
   x = 1,473.17