Finding the Fourth Proportional to 3,168.10, 4,752.72 and 1,087.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,168.10 : 4,752.72 = 1,087.56 : x
2. Step 2: Convert to fraction form
   3,168.10/4,752.72 = 1,087.56/x
3. Step 3: Cross multiply
   3,168.10x = 4,752.72 × 1,087.56
4. Step 4: Simplify right side
   3,168.10x = 5,168,881.91
5. Step 5: Solve for x
   x = 5,168,881.91/3,168.10
6. Step 6: Final answer
   x = 1,631.54