Finding the Fourth Proportional to 1,255.08, 1,731.06 and 1,099.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,255.08 : 1,731.06 = 1,099.56 : x
2. Step 2: Convert to fraction form
   1,255.08/1,731.06 = 1,099.56/x
3. Step 3: Cross multiply
   1,255.08x = 1,731.06 × 1,099.56
4. Step 4: Simplify right side
   1,255.08x = 1,903,404.33
5. Step 5: Solve for x
   x = 1,903,404.33/1,255.08
6. Step 6: Final answer
   x = 1,516.56