Finding the Fourth Proportional to 1,100.96, 1,519.35 and 628.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.96 : 1,519.35 = 628.92 : x
2. Step 2: Convert to fraction form
   1,100.96/1,519.35 = 628.92/x
3. Step 3: Cross multiply
   1,100.96x = 1,519.35 × 628.92
4. Step 4: Simplify right side
   1,100.96x = 955,549.60
5. Step 5: Solve for x
   x = 955,549.60/1,100.96
6. Step 6: Final answer
   x = 867.93