Finding the Fourth Proportional to 3,868.45, 5,339.01 and 2,545.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.45 : 5,339.01 = 2,545.99 : x
2. Step 2: Convert to fraction form
   3,868.45/5,339.01 = 2,545.99/x
3. Step 3: Cross multiply
   3,868.45x = 5,339.01 × 2,545.99
4. Step 4: Simplify right side
   3,868.45x = 13,593,066.07
5. Step 5: Solve for x
   x = 13,593,066.07/3,868.45
6. Step 6: Final answer
   x = 3,513.83