Finding the Fourth Proportional to 914.32, 1,369.59 and 680.50

Step by Step Solution

1. Step 1: Write the proportion equation
   914.32 : 1,369.59 = 680.50 : x
2. Step 2: Convert to fraction form
   914.32/1,369.59 = 680.50/x
3. Step 3: Cross multiply
   914.32x = 1,369.59 × 680.50
4. Step 4: Simplify right side
   914.32x = 932,006.00
5. Step 5: Solve for x
   x = 932,006.00/914.32
6. Step 6: Final answer
   x = 1,019.34