Finding the Fourth Proportional to 2,715.90, 4,054.20 and 2,513

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.90 : 4,054.20 = 2,513 : x
2. Step 2: Convert to fraction form
   2,715.90/4,054.20 = 2,513/x
3. Step 3: Cross multiply
   2,715.90x = 4,054.20 × 2,513
4. Step 4: Simplify right side
   2,715.90x = 10,188,204.60
5. Step 5: Solve for x
   x = 10,188,204.60/2,715.90
6. Step 6: Final answer
   x = 3,751.32