Finding the Fourth Proportional to 3,988.50, 5,983.71 and 1,252.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,988.50 : 5,983.71 = 1,252.50 : x
2. Step 2: Convert to fraction form
   3,988.50/5,983.71 = 1,252.50/x
3. Step 3: Cross multiply
   3,988.50x = 5,983.71 × 1,252.50
4. Step 4: Simplify right side
   3,988.50x = 7,494,596.78
5. Step 5: Solve for x
   x = 7,494,596.78/3,988.50
6. Step 6: Final answer
   x = 1,879.05