Finding the Fourth Proportional to 2,312.10, 3,467.61 and 1,581.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,312.10 : 3,467.61 = 1,581.48 : x
2. Step 2: Convert to fraction form
   2,312.10/3,467.61 = 1,581.48/x
3. Step 3: Cross multiply
   2,312.10x = 3,467.61 × 1,581.48
4. Step 4: Simplify right side
   2,312.10x = 5,483,955.86
5. Step 5: Solve for x
   x = 5,483,955.86/2,312.10
6. Step 6: Final answer
   x = 2,371.85