Finding the Fourth Proportional to 1,100.50, 1,518.74 and 634.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.50 : 1,518.74 = 634.75 : x
2. Step 2: Convert to fraction form
   1,100.50/1,518.74 = 634.75/x
3. Step 3: Cross multiply
   1,100.50x = 1,518.74 × 634.75
4. Step 4: Simplify right side
   1,100.50x = 964,020.22
5. Step 5: Solve for x
   x = 964,020.22/1,100.50
6. Step 6: Final answer
   x = 875.98