Finding the Fourth Proportional to 1,408.42, 2,111.57 and 1,100.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.42 : 2,111.57 = 1,100.93 : x
2. Step 2: Convert to fraction form
   1,408.42/2,111.57 = 1,100.93/x
3. Step 3: Cross multiply
   1,408.42x = 2,111.57 × 1,100.93
4. Step 4: Simplify right side
   1,408.42x = 2,324,678.83
5. Step 5: Solve for x
   x = 2,324,678.83/1,408.42
6. Step 6: Final answer
   x = 1,650.56