Finding the Fourth Proportional to 1,171.98, 1,616.60 and 751.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.98 : 1,616.60 = 751.89 : x
2. Step 2: Convert to fraction form
   1,171.98/1,616.60 = 751.89/x
3. Step 3: Cross multiply
   1,171.98x = 1,616.60 × 751.89
4. Step 4: Simplify right side
   1,171.98x = 1,215,501.61
5. Step 5: Solve for x
   x = 1,215,501.61/1,171.98
6. Step 6: Final answer
   x = 1,037.14