Finding the Fourth Proportional to 2,612.48, 3,916.02 and 1,313.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.48 : 3,916.02 = 1,313.24 : x
2. Step 2: Convert to fraction form
   2,612.48/3,916.02 = 1,313.24/x
3. Step 3: Cross multiply
   2,612.48x = 3,916.02 × 1,313.24
4. Step 4: Simplify right side
   2,612.48x = 5,142,674.10
5. Step 5: Solve for x
   x = 5,142,674.10/2,612.48
6. Step 6: Final answer
   x = 1,968.50