Finding the Fourth Proportional to 2,742.10, 4,115.27 and 1,098.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,742.10 : 4,115.27 = 1,098.81 : x
2. Step 2: Convert to fraction form
   2,742.10/4,115.27 = 1,098.81/x
3. Step 3: Cross multiply
   2,742.10x = 4,115.27 × 1,098.81
4. Step 4: Simplify right side
   2,742.10x = 4,521,902.58
5. Step 5: Solve for x
   x = 4,521,902.58/2,742.10
6. Step 6: Final answer
   x = 1,649.07