Finding the Fourth Proportional to 1,103.98, 1,657.05 and 751.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.98 : 1,657.05 = 751.50 : x
2. Step 2: Convert to fraction form
   1,103.98/1,657.05 = 751.50/x
3. Step 3: Cross multiply
   1,103.98x = 1,657.05 × 751.50
4. Step 4: Simplify right side
   1,103.98x = 1,245,273.08
5. Step 5: Solve for x
   x = 1,245,273.08/1,103.98
6. Step 6: Final answer
   x = 1,127.99