Finding the Fourth Proportional to 3,908.19, 5,862.89 and 1,310.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,908.19 : 5,862.89 = 1,310.52 : x
2. Step 2: Convert to fraction form
   3,908.19/5,862.89 = 1,310.52/x
3. Step 3: Cross multiply
   3,908.19x = 5,862.89 × 1,310.52
4. Step 4: Simplify right side
   3,908.19x = 7,683,459.86
5. Step 5: Solve for x
   x = 7,683,459.86/3,908.19
6. Step 6: Final answer
   x = 1,965.99