Finding the Fourth Proportional to 1,008.59, 1,513.33 and 684.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008.59 : 1,513.33 = 684.47 : x
2. Step 2: Convert to fraction form
   1,008.59/1,513.33 = 684.47/x
3. Step 3: Cross multiply
   1,008.59x = 1,513.33 × 684.47
4. Step 4: Simplify right side
   1,008.59x = 1,035,831.06
5. Step 5: Solve for x
   x = 1,035,831.06/1,008.59
6. Step 6: Final answer
   x = 1,027.01