Finding the Fourth Proportional to 3,902.50, 5,853.18 and 1,270.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,902.50 : 5,853.18 = 1,270.25 : x
2. Step 2: Convert to fraction form
   3,902.50/5,853.18 = 1,270.25/x
3. Step 3: Cross multiply
   3,902.50x = 5,853.18 × 1,270.25
4. Step 4: Simplify right side
   3,902.50x = 7,434,972.63
5. Step 5: Solve for x
   x = 7,434,972.63/3,902.50
6. Step 6: Final answer
   x = 1,905.18