Finding the Fourth Proportional to 3,151.56, 4,725.54 and 1,098.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,151.56 : 4,725.54 = 1,098.12 : x
2. Step 2: Convert to fraction form
   3,151.56/4,725.54 = 1,098.12/x
3. Step 3: Cross multiply
   3,151.56x = 4,725.54 × 1,098.12
4. Step 4: Simplify right side
   3,151.56x = 5,189,209.98
5. Step 5: Solve for x
   x = 5,189,209.98/3,151.56
6. Step 6: Final answer
   x = 1,646.55