Finding the Fourth Proportional to 1,411.42, 2,116.07 and 1,103.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,411.42 : 2,116.07 = 1,103.93 : x
2. Step 2: Convert to fraction form
   1,411.42/2,116.07 = 1,103.93/x
3. Step 3: Cross multiply
   1,411.42x = 2,116.07 × 1,103.93
4. Step 4: Simplify right side
   1,411.42x = 2,335,993.16
5. Step 5: Solve for x
   x = 2,335,993.16/1,411.42
6. Step 6: Final answer
   x = 1,655.07