Finding the Fourth Proportional to 3,407.06, 5,111.88 and 1,098.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407.06 : 5,111.88 = 1,098.56 : x
2. Step 2: Convert to fraction form
   3,407.06/5,111.88 = 1,098.56/x
3. Step 3: Cross multiply
   3,407.06x = 5,111.88 × 1,098.56
4. Step 4: Simplify right side
   3,407.06x = 5,615,715.55
5. Step 5: Solve for x
   x = 5,615,715.55/3,407.06
6. Step 6: Final answer
   x = 1,648.26