Finding the Fourth Proportional to 1,150.22, 1,587.18 and 684.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.22 : 1,587.18 = 684.50 : x
2. Step 2: Convert to fraction form
   1,150.22/1,587.18 = 684.50/x
3. Step 3: Cross multiply
   1,150.22x = 1,587.18 × 684.50
4. Step 4: Simplify right side
   1,150.22x = 1,086,424.71
5. Step 5: Solve for x
   x = 1,086,424.71/1,150.22
6. Step 6: Final answer
   x = 944.54