Finding the Fourth Proportional to 8,960.28, 13,440.18 and 2,386.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,960.28 : 13,440.18 = 2,386.52 : x
2. Step 2: Convert to fraction form
   8,960.28/13,440.18 = 2,386.52/x
3. Step 3: Cross multiply
   8,960.28x = 13,440.18 × 2,386.52
4. Step 4: Simplify right side
   8,960.28x = 32,075,191.17
5. Step 5: Solve for x
   x = 32,075,191.17/8,960.28
6. Step 6: Final answer
   x = 3,579.71